CN119362681A - A PCS system energy management method, device, system and storage medium - Google Patents
A PCS system energy management method, device, system and storage medium Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Abstract
The present disclosure provides an energy management method, device, system and storage medium for a PCS system, which belong to the technical field of energy management, and the method comprises the steps of constructing a distributed auxiliary power architecture; the distributed auxiliary power architecture includes a first auxiliary power source disposed on an ac side and a second auxiliary power source disposed on a dc side, determining capacity configurations of the first auxiliary power source and the second auxiliary power source based on load information, and determining an energy management policy based on the capacity configurations of the first auxiliary power source and the second auxiliary power source. The energy management method, the device, the system and the storage medium of the PCS system can improve the energy storage efficiency and solve the problem that the overall energy efficiency is relatively low due to energy loss in the electric energy transmission and distribution process.
Description
Technical Field
The present disclosure relates to energy management technology, and more particularly, to an energy management method, device, system and storage medium for a PCS system.
Background
With the increasing environmental pollution and energy crisis problems, the world is turning emphasis on the development and application of renewable energy, which has become a central part of the global energy strategy. The cost reduction and popularity of renewable energy sources have led to an ever-expanding share of distributed power sources in the global energy system. However, the volatility and instability of renewable energy sources present challenges for energy management and distribution of the power grid. Compared with a traditional power system which depends on a large power station and a huge power transmission network, the centralized architecture can generate more energy loss in the energy transmission process, and has lower adaptability and response speed to energy demand change or distributed energy grid connection. The energy loss during the transmission and distribution of electrical energy makes the overall energy efficiency relatively low.
Disclosure of Invention
The disclosure aims to provide an energy management method, an energy management device, an energy management system and a storage medium of a PCS system, so as to improve energy storage efficiency and solve the problem that the overall energy efficiency is relatively low due to energy loss in the process of electric energy transmission and distribution.
In a first aspect of an embodiment of the present disclosure, there is provided an energy management method of a PCS system, including:
The distributed auxiliary power architecture comprises a first auxiliary power supply arranged on an alternating current side and a second auxiliary power supply arranged on a direct current side;
Determining a capacity configuration of the first auxiliary power source and the second auxiliary power source based on the load information;
an energy management policy is determined based on the capacity configuration of the first auxiliary power source and the second auxiliary power source.
In a second aspect of the embodiments of the present disclosure, there is provided an energy management apparatus of a PCS system, including:
The power architecture module is used for constructing a distributed auxiliary power architecture, wherein the distributed auxiliary power architecture comprises a first auxiliary power supply arranged on an alternating current side and a second auxiliary power supply arranged on a direct current side;
A load configuration module for determining a capacity configuration of the first auxiliary power source and the second auxiliary power source based on the load information;
an energy management module determines an energy management policy based on capacity configurations of the first auxiliary power source and the second auxiliary power source.
In a third aspect of the disclosed embodiments, an energy management system of a PCS system is provided, including a memory, a processor, and a computer program stored in the memory and running on the processor, the processor implementing the steps of the energy management method of a PCS system described above when executing the computer program.
In a fourth aspect of the disclosed embodiments, a computer readable storage medium is provided, where a computer program is stored, where the computer program, when executed by a processor, implements the steps of an energy management method of a PCS system described above.
The energy management method, the device, the system and the storage medium of the PCS system have the beneficial effects that on one hand, the traditional centralized power architecture is often limited by the fixity of the power position in layout, so that the whole system needs to be conducted around a high-power supply in design, and the complexity and the cost of wiring are increased. The distributed auxiliary power supply architecture is characterized in that the first auxiliary power supply and the second auxiliary power supply are respectively arranged on the alternating current side and the direct current side, so that the power supplies are closer to respective ports, wiring design is greatly simplified, convenience in installation and maintenance is further improved, and loss and fault risks possibly caused by long-distance wiring are reduced.
On the other hand, compared with the traditional single large-capacity auxiliary power supply, the distributed auxiliary power supply architecture adopts a plurality of small-capacity power supplies, and the design not only reduces the manufacturing cost of a single power supply module, but also widens the type selection range of hardware modules. Meanwhile, the small-capacity power supply is simpler and more efficient in heat dissipation, control and other aspects, and the cost of the whole system is further reduced.
On the other hand, the distributed auxiliary power supply architecture realizes power supply decoupling on a line by supplying power to an alternating current side and a direct current side respectively, and even if the power supply on one side fails, the normal operation on the other side is not affected. In addition, as the two sides can be used as power supply sources, when one side is insufficient in power supply or fails, the other side can rapidly supply power, so that uninterrupted power supply of key loads is ensured. The redundancy design not only improves the reliability of power supply, but also reduces the risk of system breakdown caused by single-point faults.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are required for the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a flow chart of a method for energy management of a PCS system in accordance with an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a distributed auxiliary power architecture according to one embodiment of the present disclosure;
FIG. 3 is a schematic flow diagram of an energy management strategy according to an embodiment of the present disclosure;
FIG. 4 is a block diagram illustrating an energy management device for a PCS system in accordance with an embodiment of the present disclosure;
FIG. 5 is a schematic block diagram of an energy management system for a PCS system in accordance with an embodiment of the present disclosure.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the disclosed embodiments. However, it will be apparent to one skilled in the art that the present disclosure may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present disclosure with unnecessary detail.
For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the embodiments illustrated in the drawings.
Referring to fig. 1, fig. 1 is a flowchart of a method for energy management of a PCS system according to an embodiment of the disclosure, and the method may include S101 to S103.
S101, constructing a distributed auxiliary power supply architecture. The distributed auxiliary power architecture includes a first auxiliary power supply disposed on an ac side and a second auxiliary power supply disposed on a dc side.
In the present embodiment, the distributed auxiliary power architecture represents one power supply structure in which auxiliary power supplies are arranged in a dispersed manner at different positions. The distributed auxiliary power architecture designed in this embodiment is shown in fig. 2. The alternating current side is the side connected with an alternating current power grid, and relates to links such as input, output and conversion of alternating current. The first auxiliary power supply is provided on the ac side and may be used to provide additional power support, stabilize the voltage, or cope with an emergency in the ac part. The direct current side is the side related to the direct current line, and relates to the transmission and use of direct current. The second auxiliary power supply is positioned at the direct current side, and can play roles of supplying power in a direct current link, stabilizing direct current voltage and the like.
For example, a stable alternating current is provided when the alternating current network fluctuates or the system has special demands on the alternating current power. The second auxiliary power supply at the direct current side ensures the stable operation of the direct current equipment in the direct current link, and provides power support in time when the direct current load changes or fails. The two cooperate together to improve the reliability and stability of the system. Specifically, a small-sized alternator, UPS, or the like may be installed on the ac side as the first auxiliary power source. A battery pack or a direct current power supply module can be used as the second auxiliary power supply on the direct current side. The power supplies at two sides are monitored and managed through the sensor and the controller, so that automatic switching and coordinated operation are realized.
For example, in a new energy power generation system, the distributed auxiliary power architecture may ensure stable operation of the system. When the solar energy or wind energy power generation output is unstable, the first auxiliary power supply on the alternating current side can stabilize voltage in interaction with the power grid, and the second auxiliary power supply on the direct current side can provide reliable power for direct current loads such as energy storage equipment.
And S102, determining capacity configurations of the first auxiliary power supply and the second auxiliary power supply based on the load information.
In this embodiment, the load information may include parameters such as electric power, current, voltage, etc. required by various electric devices in the electric power system, including information such as load change rules, peak load, average load, etc. in different time periods. The capacity configuration of the first auxiliary power supply and the second auxiliary power supply means that a proper power supply capacity is determined for the first auxiliary power supply on the alternating current side and the second auxiliary power supply on the direct current side according to actual requirements so as to meet power supply requirements under different running states.
In this embodiment, the load information is monitored to know the change of the electricity demand. The capacity of the required auxiliary power supply is calculated according to the information, so that the auxiliary power supply can provide enough power support during peak load, and the waste caused by excessive capacity during low load is avoided.
For example, the load information can be collected in real time by using a sensor and a monitoring device, and the change rule and the peak condition of the load can be determined through a data analysis algorithm. The capacity of the auxiliary power supply is then determined in combination with the actual reliability requirements and cost considerations.
Illustratively, in the data center, the capacity configurations of the first auxiliary power source and the second auxiliary power source are determined by monitoring load information of the devices such as the server. When the load of the data center suddenly increases, the auxiliary power supply can timely provide additional power, so that stable operation of the server is ensured. In industrial production, auxiliary power supply capacity is reasonably configured according to load requirements of different equipment so as to cope with power fluctuation in the production process.
And S103, determining an energy management strategy based on the capacity configuration of the first auxiliary power supply and the second auxiliary power supply.
In this embodiment, by analyzing the capacities of the first auxiliary power supply and the second auxiliary power supply, it is determined how to reasonably allocate the output powers of the two auxiliary power supplies in different operation states. The energy management strategy can dynamically adjust the output power of the auxiliary power supply according to the change of the load, increase the output in the load peak period and reduce the output in the load valley period so as to realize the efficient utilization of energy.
In the smart micro grid, an energy management strategy is formulated according to capacity configurations of the first auxiliary power source and the second auxiliary power source. When renewable energy sources are insufficient in power generation and power grid power supply is unstable, the energy management strategy can start one or two auxiliary power sources to supply power for a key load, and meanwhile charge and discharge of the energy storage equipment are coordinated, so that reliability and energy utilization efficiency of the whole micro-grid are improved. For example, at lower loads, the output of the auxiliary power supply may be reduced to reduce power consumption. When the load peak or the main power supply fails, the two auxiliary power supplies are coordinated according to the capacity condition to increase the output, so that the power supply stability is ensured.
In this embodiment, the PCS system is a distributed auxiliary power architecture. The load information may include the amount of electricity used for different time periods, peaks and valleys of the load, etc. By analysis of this information, the capacity required by the auxiliary power supply can be determined to meet the actual energy demand. The energy management strategy aims at optimizing the energy distribution and use of the system, improving the energy storage efficiency and reducing the energy loss.
As can be seen from the above, the present embodiment has the beneficial effects that, on one hand, the conventional centralized power architecture is often limited in layout by the fixity of the power location, so that the whole system needs to be performed around a high-power supply during design, and the complexity and cost of wiring are increased. The distributed auxiliary power supply architecture is characterized in that the first auxiliary power supply and the second auxiliary power supply are respectively arranged on the alternating current side and the direct current side, so that the power supplies are closer to respective ports, wiring design is greatly simplified, convenience in installation and maintenance is further improved, and loss and fault risks possibly caused by long-distance wiring are reduced.
On the other hand, compared with the traditional single large-capacity auxiliary power supply, the distributed auxiliary power supply architecture adopts a plurality of small-capacity power supplies, and the design not only reduces the manufacturing cost of a single power supply module, but also widens the type selection range of hardware modules. Meanwhile, the small-capacity power supply is simpler and more efficient in heat dissipation, control and other aspects, and the cost of the whole system is further reduced. In addition, the distributed design is also convenient for flexibly adjusting the power supply configuration according to different application scenes, and the flexibility and the adaptability of the system are improved.
In yet another aspect, the distributed auxiliary power architecture achieves on-line power decoupling by providing power on the ac side and the dc side, respectively. Even if the power supply on one side fails, the normal operation on the other side is not affected. In addition, as the two sides can be used as power supply sources, when one side is insufficient in power supply or fails, the other side can rapidly take over a power supply task, so that uninterrupted power supply of a key load is ensured. The redundancy design not only improves the reliability of power supply, but also reduces the risk of system breakdown caused by single-point faults. Meanwhile, through a reasonable energy management strategy, the service efficiency of the power supply can be further optimized, the service life of the power supply is prolonged, and the long-term operation cost is reduced, so that the energy efficiency and the stability of the whole PCS system are improved.
In one embodiment of the present disclosure, determining a capacity configuration of a first auxiliary power source and a second auxiliary power source based on load information includes:
the load capacity is determined based on the load information.
The capacity of the first auxiliary power source and the capacity of the second auxiliary power source are determined based on the load capacity.
In the present embodiment, determining the load capacity based on the load information includes:
the load type is determined based on the load information. Load types include immediate power load and non-immediate power load.
The load capacity is determined based on the immediate power load and the non-immediate power load.
In the present embodiment, the immediate power supply load may include a load such as a control circuit, a driving circuit, or the like, and the non-immediate power supply load may include a load such as a fan. The running time of the non-immediate power supply load is flexible, the initial running time can be changed, and switching can be performed at any time in the running process. The load information refers to various data related to the electrical devices in the power system, and may include power requirements, run time, operation modes, etc. of the devices. For example, information such as the power level of different machine devices in a certain plant, the time of day of operation, etc. The load capacity represents the total electrical power required by all consumers over a particular time. Such as the sum of the power of all the enterprise consumers in an industrial park.
Illustratively, the load type is determined from the collected load information. For different types of loads, the importance and power supply requirements are different. The total load capacity is calculated from the load type. For immediate power supply loads, the power supply requirements of the capacity configuration are guaranteed preferentially when the capacity configuration is determined, and enough power is guaranteed to be available at any time. For non-immediate power supply loads, the distribution may be made based on the remaining power capacity on the basis that the immediate power supply load is satisfied. Load information, such as power sensors, current transformers, etc., may be collected by installing sensors and monitoring devices.
According to the embodiment, the first auxiliary power supply capacity and the second auxiliary power supply capacity are accurately configured through the load information, so that the immediate power supply load is guaranteed to supply power preferentially, the non-immediate power supply load is flexibly allocated, and the power supply reliability and the economy are improved.
In one embodiment of the present disclosure, the load capacity includes a first capacity and a second capacity. The first capacity is the maximum power required by the immediate power load and the second capacity is the maximum power required by the non-immediate power load.
Determining a capacity of the first auxiliary power source and a capacity of the second auxiliary power source based on the load capacity, comprising:
a third capacity is determined based on the first capacity and the second capacity, the third capacity being a capacity of the first auxiliary power source.
A fourth capacity is determined based on the first capacity and the second capacity, the fourth capacity being a capacity of the second auxiliary power source.
The third capacity is greater than or equal to the first capacity and the third capacity is greater than or equal to the second capacity.
The fourth capacity is greater than or equal to the first capacity and the third capacity is greater than or equal to the second capacity.
The sum of the third capacity and the fourth capacity is a first value, the sum of the first capacity and the second capacity is a second value, and the first value is greater than or equal to the second value.
In this embodiment, the capacities of the ac side auxiliary power supply architecture and the dc side auxiliary power supply need to meet the maximum power required by the immediate power supply load, so that when the capacity of one side of the ac side power supply meets the immediate power supply load, the start of the immediate power supply load is completed, and meanwhile, the maximum power required by the non-immediate power supply load should be met, and after both the ac side power supply and the dc side power supply are started, the start of the non-immediate power supply load is realized.
The capacity configuration formulas of the first auxiliary power supply and the second auxiliary power supply are as follows:
wherein, Representing the capacity of the first auxiliary power supply (i.e. the third capacity) and the capacity of the second auxiliary power supply (i.e. the fourth capacity) respectively,Representing the maximum power required by the immediate power load (i.e., the first capacity) and the maximum power required by the non-immediate power load (i.e., the second capacity), respectively.
According to the embodiment, the capacity configuration of the first auxiliary power supply and the second auxiliary power supply is optimized, so that the immediate power supply load can be started when any power supply is started, meanwhile, the non-immediate power supply load can be ensured to run smoothly after the dual power supply is started, the stability and the response speed of the system are improved, and the energy distribution is optimized.
In one embodiment of the present disclosure, an energy management method of a PCS system further includes:
The first capacity is calculated based on a first formula.
The second capacity is calculated based on a second formula.
The first formula is:
wherein, Indicating that the immediate power supply load a is inThe power actually consumed at the moment in time,Indicating that the immediate power supply is onThe power to be consumed at the moment in time,Representing the run time interval of the immediate power supply load a.
The second formula is:
wherein, Indicating that the non-immediate power supply load b is inThe power actually consumed at the moment in time,AndRespectively indicate that the non-immediate power supply load b is inMinimum power and maximum power consumed at a moment whenWhen 0, it indicates that the non-immediate power supply load b has been disconnected from power supply,AndThe two end values of the run time interval of the non-immediate supply load b are respectively indicated.
In the present embodiment, load categories are divided into immediate power supply loads and non-immediate power supply loads according to the distributed auxiliary power supply architecture, and load capacity configuration is performed according to the two load types. At the moment, the power of the opposite power supply load and the power of the non-instant power supply load at a certain moment are required to be calculated, so that the two auxiliary power supplies in the distributed auxiliary power supply architecture can meet the load operation at the certain moment. Specifically, the first formula is a mathematical model of the immediate power supply load and the second formula is a mathematical model of the non-immediate power supply load.
Illustratively, calculating a plurality of powers of the immediate power supply load during the first run time based on a first formula, selecting a maximum value from the plurality of powers as the first capacity;
And calculating a plurality of powers of the non-immediate power supply load in the second operation time based on a second formula, and selecting a maximum value from the plurality of powers as a second capacity. The first and second operating times are both fixed time periods.
According to the embodiment, the capacity of the immediate power supply and the non-immediate power supply load is accurately calculated, so that the power supply in the distributed auxiliary power supply architecture can meet the load requirements of all time periods, and the system stability and the energy utilization efficiency are improved.
In one embodiment of the present disclosure, the distributed auxiliary power architecture further comprises:
the first auxiliary power supply is connected to the immediate power supply load and the non-immediate power supply load, respectively.
The second auxiliary power supply is connected with the immediate power supply load, and the second auxiliary power supply is also connected with the non-immediate power supply load through the first switch.
In this embodiment, the distributed auxiliary power architecture is shown in fig. 2. The AC auxiliary power source is the first auxiliary power source, and the DC auxiliary power source is the second auxiliary power source.
When the first auxiliary power supply or the second auxiliary power supply is started, the immediate power supply load is started first, the started auxiliary power supply supplies power thereto, and then the other auxiliary power supply is started. Only when the capacities of the two auxiliary power supplies meet the capacity constraint, the first switch is closed, and the non-immediate power supply load is started.
The distributed auxiliary power supply architecture is adopted in the embodiment, so that the immediate power supply load can be ensured to obtain power preferentially, meanwhile, the starting time of the non-immediate power supply load is flexibly adjusted, the stability and the reliability are improved, the influence of single power supply faults on the whole body is reduced, and the energy utilization is optimized.
In one embodiment of the present disclosure, determining an energy management policy based on capacity configurations of a first auxiliary power source and a second auxiliary power source includes:
If the first auxiliary power supply is started to supply power, the immediate power supply load is started, the first auxiliary power supply supplies power for the immediate power supply load, and the second auxiliary power supply is controlled to be started.
If the second auxiliary power supply is started to supply power, the immediate power supply load is started, the second auxiliary power supply supplies power for the immediate power supply load, and the first auxiliary power supply is controlled to be started.
If the capacity of the first auxiliary power supply and the capacity of the second auxiliary power supply meet the capacity constraint, the first switch is closed, and the non-immediate power supply load is started.
In this embodiment, the status and capacity information of the two auxiliary power supplies are monitored in real time. When power supply is needed, judging which auxiliary power supply is started according to a preset strategy, and controlling the auxiliary power supply to supply power for an immediate power supply load. At the same time, the start-up condition of the other auxiliary power supply is monitored. When the capacities of the two auxiliary power supplies are determined to meet the requirements, the first switch is closed, and the non-immediate power supply load is started.
Illustratively, in one factory, the production facility belongs to an immediate power load and the lighting facility belongs to a non-immediate power load. When the power supply of the power grid is problematic, if the first auxiliary power supply is started, the production equipment is ensured to start to operate, the first auxiliary power supply provides power for the production equipment, and then the second auxiliary power supply is controlled to start so as to provide more stable power support. When the capacities of the two auxiliary power supplies meet the total load demand of the factory, the first switch is closed, and the lighting equipment and the like are started to supply power not immediately. Therefore, under the condition of limited power supply, the operation of key equipment is preferentially ensured, and the capacity of the auxiliary power supply is reasonably utilized.
Illustratively, as shown in fig. 3, an energy management policy is formulated for a distributed auxiliary power architecture and auxiliary power, load configuration. According to the distributed power architecture, auxiliary power sources are configured on both an alternating current side and a direct current side, load capacity is configured according to the auxiliary power source capacity, load priority is set, loads are divided into immediate power supply loads and non-immediate power supply loads, and the priority of the immediate power supply loads is higher than that of the non-immediate power supply loads. On the basis, one of the power supply ends of the alternating current side or the direct current side is started firstly, then the immediate power supply load is supplied with power, meanwhile, after the driving circuit is started, the auxiliary power supply which is not started at the other side is started, when the capacity constraint condition is met and the non-immediate power supply line switch state K=1 is met (namely, the switch is closed), the non-immediate power supply load (namely, the unnecessary load) is started, the energy utilization rate is improved, and the energy management is optimized.
The embodiment can intelligently allocate the auxiliary power supply, preferentially ensure the power supply of the key equipment, and further consider the non-key equipment, improve the resource utilization rate, enhance the stability and the flexibility of the system, and is suitable for various power supply scenes.
Corresponding to the energy management method of the PCS system in the above embodiment, fig. 4 is a block diagram of an energy management device of the PCS system according to an embodiment of the disclosure. For ease of illustration, only portions relevant to embodiments of the present disclosure are shown.
Referring to fig. 4, the energy management apparatus 20 of the PCS system includes a power architecture module 21, a load configuration module 22, and an energy management module 23.
The power architecture module 21 is used for constructing a distributed auxiliary power architecture. The distributed auxiliary power architecture includes a first auxiliary power supply disposed on an ac side and a second auxiliary power supply disposed on a dc side.
The load configuration module 22 is configured to determine a capacity configuration of the first auxiliary power source and the second auxiliary power source based on the load information.
The energy management module 23 is configured to determine an energy management policy based on the capacity configurations of the first auxiliary power source and the second auxiliary power source.
In one embodiment of the present disclosure, the load configuration module 22 is specifically configured to determine the load capacity based on the load information.
The capacity of the first auxiliary power source and the capacity of the second auxiliary power source are determined based on the load capacity.
In one embodiment of the present disclosure, the load configuration module 22 is specifically further configured to determine a load type based on the load information. Load types include immediate power load and non-immediate power load.
The load capacity is determined based on the immediate power load and the non-immediate power load.
In one embodiment of the present disclosure, the load capacity includes a first capacity and a second capacity. The first capacity is the maximum power required by the immediate power load and the second capacity is the maximum power required by the non-immediate power load. The load configuration module 22 is specifically further configured to determine a third capacity based on the first capacity and the second capacity, where the third capacity is a capacity of the first auxiliary power supply.
A fourth capacity is determined based on the first capacity and the second capacity, the fourth capacity being a capacity of the second auxiliary power source.
The third capacity is greater than or equal to the first capacity and the third capacity is greater than or equal to the second capacity.
The fourth capacity is greater than or equal to the first capacity and the third capacity is greater than or equal to the second capacity.
The sum of the third capacity and the fourth capacity is a first value, the sum of the first capacity and the second capacity is a second value, and the first value is greater than or equal to the second value.
In one embodiment of the present disclosure, an energy management device 20 of a PCS system further includes:
And the calculation module is used for calculating the first capacity based on the first formula.
The second capacity is calculated based on a second formula.
The first formula is:
wherein, Indicating that the immediate power supply load a is inThe power actually consumed at the moment in time,Indicating that the immediate power supply is onThe power to be consumed at the moment in time,Representing the run time interval of the immediate power supply load a.
The second formula is:
wherein, Indicating that the non-immediate power supply load b is inThe power actually consumed at the moment in time,AndRespectively indicate that the non-immediate power supply load b is inMinimum power and maximum power consumed at a moment whenWhen 0, it indicates that the non-immediate power supply load b has been disconnected from power supply,AndThe two end values of the run time interval of the non-immediate supply load b are respectively indicated.
In one embodiment of the present disclosure, the power architecture module 21 is specifically configured to connect the first auxiliary power source to an immediate power load and a non-immediate power load, respectively.
The second auxiliary power supply is connected with the immediate power supply load, and the second auxiliary power supply is also connected with the non-immediate power supply load through the first switch.
In one embodiment of the present disclosure, the energy management module 23 is specifically configured to start the immediate power supply load if the first auxiliary power supply is started, and the first auxiliary power supply supplies power to the immediate power supply load, and then control the second auxiliary power supply to start.
If the second auxiliary power supply is started to supply power, the immediate power supply load is started, the second auxiliary power supply supplies power for the immediate power supply load, and the first auxiliary power supply is controlled to be started.
If the capacity of the first auxiliary power supply and the capacity of the second auxiliary power supply meet the capacity constraint, the first switch is closed, and the non-immediate power supply load is started.
Referring to fig. 5, fig. 5 is a schematic block diagram of an energy management system of a PCS system according to an embodiment of the disclosure. An energy management system 300 of a PCS system in this embodiment as illustrated in fig. 5 may include one or more processors 301, one or more input devices 302, one or more output devices 303, and one or more memories 304. The processor 301, the input device 302, the output device 303, and the memory 304 communicate with each other via a communication bus 305. The memory 304 is used to store a computer program comprising program instructions. The processor 301 is configured to execute program instructions stored in the memory 304. Wherein the processor 301 is configured to invoke program instructions to perform the functions of the modules in the various device embodiments described above, such as the functions of the modules 21-23 shown in fig. 4.
It should be appreciated that in the disclosed embodiments, the Processor 301 may be a central processing unit (Central Processing Unit, CPU), which may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL processors, DSPs), application SPECIFIC INTEGRATED Circuits (ASICs), field-Programmable gate arrays (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The input device 302 may include a touch pad, a fingerprint collection sensor (for collecting fingerprint information of a user and direction information of a fingerprint), a microphone, etc., and the output device 303 may include a display (LCD, etc.), a speaker, etc.
The memory 304 may include read only memory and random access memory and provides instructions and data to the processor 301. A portion of memory 304 may also include non-volatile random access memory. For example, the memory 304 may also store information of device type.
In a specific implementation, the processor 301, the input device 302, and the output device 303 described in the embodiments of the present disclosure may perform the implementation described in the first embodiment and the second embodiment of the energy management method of the PCS system, and may also perform the implementation of the energy management system 300 of the PCS system described in the embodiments of the present disclosure, which is not described herein again.
In another embodiment of the disclosure, a computer readable storage medium is provided, where the computer readable storage medium stores a computer program, where the computer program includes program instructions, where the program instructions, when executed by a processor, implement all or part of the procedures in the method embodiments described above, or may be implemented by instructing related hardware by the computer program, where the computer program may be stored in a computer readable storage medium, where the computer program, when executed by the processor, implements the steps of each of the method embodiments described above. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, executable files or in some intermediate form, etc. The computer readable medium may include any entity or device capable of carrying computer program code, recording medium, USB flash disk, removable hard disk, magnetic disk, optical disk, computer Memory, read-Only Memory (ROM), random access Memory (RAM, random Access Memory), electrical carrier signals, telecommunications signals, and software distribution media, among others.
The computer readable storage medium may be an internal storage unit of an energy management system of a PCS system of any of the foregoing embodiments, such as a hard disk or a memory of the energy management system of the PCS system. The computer readable storage medium may also be an external storage device of an energy management system of a PCS system, such as a plug-in hard disk, smart memory card (SMART MEDIA CARD, SMC), secure Digital (SD) card, flash memory card (FLASH CARD) or the like, which are provided on the energy management system of the PCS system. Further, the computer readable storage medium may also include both internal and external storage devices of an energy management system of a PCS system. The computer readable storage medium is used to store a computer program and other programs and data needed for an energy management system of a PCS system. The computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be embodied in electronic hardware, in computer software, or in a combination of the two, and that the elements and steps of the examples have been generally described in terms of function in the foregoing description to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
It will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the energy management system and unit of the PCS system described above may refer to the corresponding process in the foregoing method embodiment, and will not be repeated herein.
In several embodiments provided herein, it should be understood that the disclosed energy management system and method for a PCS system may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via some interfaces or units, or may be an electrical, mechanical, or other form of connection.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purposes of the embodiments of the present disclosure.
In addition, each functional unit in each embodiment of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The foregoing is merely a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any equivalent modifications or substitutions will be apparent to those skilled in the art within the scope of the present disclosure, and these modifications or substitutions should be covered in the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (10)
1. A method of energy management for a PCS system, comprising:
the distributed auxiliary power architecture comprises a first auxiliary power supply arranged on an alternating current side and a second auxiliary power supply arranged on a direct current side;
Determining a capacity configuration of the first auxiliary power source and the second auxiliary power source based on the load information;
An energy management policy is determined based on capacity configurations of the first auxiliary power source and the second auxiliary power source.
2. The energy management method of the PCS system of claim 1, wherein the determining a capacity configuration of the first auxiliary power source and the second auxiliary power source based on load information comprises:
determining a load capacity based on the load information;
a capacity of the first auxiliary power source and a capacity of the second auxiliary power source are determined based on the load capacity.
3. The energy management method of the PCS system of claim 2, wherein the determining a load capacity based on the load information comprises:
determining a load type based on the load information, the load type including an immediate power load and a non-immediate power load;
the load capacity is determined based on the immediate power load and the non-immediate power load.
4. The energy management method of the PCS system of claim 3, wherein the load capacity comprises a first capacity and a second capacity, wherein the first capacity is a maximum power required by the immediate power supply load and the second capacity is a maximum power required by the non-immediate power supply load;
The determining the capacity of the first auxiliary power source and the capacity of the second auxiliary power source based on the load capacity includes:
Determining a third capacity based on the first capacity and the second capacity, the third capacity being a capacity of the first auxiliary power supply;
determining a fourth capacity based on the first capacity and the second capacity, the fourth capacity being a capacity of the second auxiliary power supply;
the third capacity is greater than or equal to the first capacity, and the third capacity is greater than or equal to the second capacity;
the fourth capacity is greater than or equal to the first capacity, and the third capacity is greater than or equal to the second capacity;
The sum of the third capacity and the fourth capacity is a first value, the sum of the first capacity and the second capacity is a second value, and the first value is greater than or equal to the second value.
5. The energy management method of a PCS system of claim 4, further comprising:
Calculating the first capacity based on a first formula;
Calculating the second capacity based on a second formula;
The first formula is:
wherein, Indicating that the immediate power supply load a is inThe power actually consumed at the moment in time,Indicating that the immediate power supply is onThe power to be consumed at the moment in time,A run time interval representing the immediate power supply load a;
the second formula is:
wherein, Indicating that the non-immediate power supply load b is inThe power actually consumed at the moment in time,AndRespectively indicate that the non-immediate power supply load b is inMinimum power and maximum power consumed at a moment whenWhen 0, it indicates that the non-immediate power supply load b has been disconnected from power supply,AndThe two end values of the run time interval of the non-immediate supply load b are respectively indicated.
6. The energy management method of the PCS system of claim 3, wherein the distributed auxiliary power architecture further comprises:
The first auxiliary power supply is connected with the immediate power supply load and the non-immediate power supply load respectively;
The second auxiliary power supply is connected with the immediate power supply load, and the second auxiliary power supply is also connected with the non-immediate power supply load through a first switch.
7. The energy management method of the PCS system of claim 6, wherein the determining an energy management strategy based on capacity configurations of the first auxiliary power source and the second auxiliary power source comprises:
If the first auxiliary power supply is started to supply power, the immediate power supply load is started, the first auxiliary power supply supplies power to the immediate power supply load, and then the second auxiliary power supply is controlled to be started;
If the second auxiliary power supply is started to supply power, the immediate power supply load is started, the second auxiliary power supply supplies power to the immediate power supply load, and the first auxiliary power supply is controlled to be started;
And if the capacity of the first auxiliary power supply and the capacity of the second auxiliary power supply meet capacity constraint, closing the first switch, and starting the non-immediate power supply load.
8. An energy management apparatus of a PCS system, comprising:
The power architecture module is used for constructing a distributed auxiliary power architecture, wherein the distributed auxiliary power architecture comprises a first auxiliary power supply arranged on an alternating current side and a second auxiliary power supply arranged on a direct current side;
a load configuration module for determining a capacity configuration of the first auxiliary power source and the second auxiliary power source based on load information;
An energy management module to determine an energy management policy based on capacity configurations of the first auxiliary power source and the second auxiliary power source.
9. An energy management system of a PCS system comprising a memory, a processor and a computer program stored in said memory and running on said processor, wherein said processor implements the steps of the method according to any of claims 1 to 7 when said computer program is executed.
10. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the method according to any one of claims 1 to 7.
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