CN104155613A - Online electric power communication battery pack monitoring method - Google Patents

Abstract

An on-line monitoring method for electric communication battery packs. It includes the steps of building an integrated intelligent battery, building an integrated battery pack, establishing a monitoring system, collecting monitoring data in real time, and monitoring in real time by a network management center. The effect of the invention: the integrated intelligent battery is adopted, the monitoring unit is integrated inside the battery, and the purpose of outputting battery monitoring information is achieved by reserving a communication port, without connecting to the pole of the battery, the construction is safe and convenient, beautiful and practical. Using the small current discharge technology based on the internal resistance method, the test time can be set and monitored at any time, with high accuracy and good consistency. Using the method of real-time monitoring of battery voltage, temperature and internal resistance, combined with the remaining capacity of the battery, comprehensive analysis, judging the quality of the battery, and realizing the state detection and online monitoring of the battery.

Description

An online monitoring method for power communication battery pack

technical field

The invention belongs to the technical field of electric power communication, and in particular relates to an online monitoring method for electric power communication battery packs.

Background technique

In the power communication power system, important equipment and emergency use must ensure uninterrupted power supply. The battery pack is the only energy supply for the load during AC power failure or other accidents, and it is the key equipment to ensure uninterrupted power supply. However, due to the characteristics of the battery and the limitations of the current maintenance technology, the battery pack cannot be monitored accurately on-line, and various problems cannot be detected in advance for individual outdated batteries. Therefore, there are major safety hazards in the operation of this battery pack. In addition, batteries with a design life of 15-20 years can only be used for 3-5 years, and a large number of batteries are scrapped ahead of time, resulting in huge waste of resources, cost loss, and environmental pollution. Therefore, it is very necessary to study an intelligent battery on-line monitoring method that can realize the condition maintenance of battery cells and inform the working status of the battery in advance.

Contents of the invention

In order to solve the above problems, the purpose of the present invention is to provide an online monitoring method for electric power communication battery packs.

In order to achieve the above object, the online monitoring method of the power communication battery pack provided by the present invention includes the following steps executed in sequence:

Step 1) Build an integrated smart battery: The integrated smart battery is a single battery with a monitoring unit integrated inside. The monitoring unit uses a small current discharge technology based on the internal resistance method to detect the state of the battery. The data output interface of the monitoring unit;

Step 2) Build an integrated battery pack: Connect the output electrodes of 24 integrated smart batteries in series to form an integrated battery pack, and connect the data output interfaces of each integrated smart battery through a network cable to form the communication of the integrated battery pack. interface;

Step 3) Establish a monitoring system: connect the integrated battery pack to the integrated network router through a network cable, and the integrated network router is connected to the network management center through an optical cable;

Step 4) Collect monitoring data in real time: when the integrated battery pack is running, the monitoring unit collects the running monitoring data of each single battery in real time;

Step 5) Real-time monitoring by the network management center: the monitoring unit uploads the collected data to the monitoring server of the network management center through the network, and the operation and maintenance personnel monitor each battery in operation in real time through the monitoring server.

In step 1), the monitoring unit is composed of a signal acquisition unit and a data concentration unit, the input of the monitoring unit is connected to the storage battery, and its output is connected to the input of the data concentration unit, and the output of the data concentration unit is is the data output port of the monitoring unit; wherein: the signal acquisition unit is a battery state signal acquisition device, which can collect the temperature, internal resistance and terminal voltage signals of the battery in real time, and the data concentration unit converts the collected signals into data packets, and output from the data output port.

The on-line monitoring method of the power communication storage battery pack provided by the present invention has the following advantages and positive effects:

1. The integrated intelligent battery is adopted, and the monitoring unit is integrated inside the battery. Through the reserved communication port, the purpose of outputting battery monitoring information is achieved. There is no need to connect the battery pole, and the construction is safe and convenient, beautiful and practical.

2. Using the small current discharge technology based on the internal resistance method, the test time can be set and monitored at any time, with high accuracy and good consistency.

3. Using the method of real-time monitoring of battery voltage, temperature and internal resistance, combined with the remaining capacity of the battery, comprehensive analysis, judging the quality of the battery, and realizing the state detection and online monitoring of the battery.

Description of drawings

Fig. 1 is a flow chart of the online monitoring method for electric power communication battery pack provided by the present invention.

Fig. 2 is a structural diagram of an integrated intelligent battery used in the online monitoring method for a power communication storage battery provided by the present invention.

Fig. 3 is a structural diagram of the integrated battery pack used in the online monitoring method for the power communication storage battery pack provided by the present invention.

Detailed ways

The online monitoring method of the power communication battery pack provided by the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, the on-line monitoring method of the power communication battery pack provided by the present invention includes the following steps executed in sequence:

Step 1) Construct the integrated smart battery as shown in Figure 2: the integrated smart battery is a single battery with a monitoring unit integrated inside, and the monitoring unit uses the small current discharge technology based on the internal resistance method to detect the state of the battery. There is a data output interface of the monitoring unit outside the single battery;

Step 2) Build an integrated battery pack as shown in Figure 3: Connect the output electrodes of 24 integrated smart batteries in series to form an integrated battery pack, and connect the data output interfaces of each integrated smart battery through a network cable to form an integrated battery pack. The communication interface of the chemical battery pack;

Step 3) Establish a monitoring system: connect the integrated battery pack to the integrated network router through a network cable, and the integrated network router is connected to the network management center through an optical cable;

Step 4) Collect monitoring data in real time: when the integrated battery pack is running, the monitoring unit collects the running monitoring data of each single battery in real time;

Step 5) Real-time monitoring by the network management center: the monitoring unit uploads the collected data to the monitoring server of the network management center through the data network, and the operation and maintenance personnel monitor each battery in operation in real time through the monitoring server.

In step 1), the monitoring unit is composed of a signal acquisition unit and a data concentration unit, the input of the monitoring unit is connected to the storage battery, and its output is connected to the input of the data concentration unit, and the output of the data concentration unit is is the data output port of the monitoring unit; wherein: the signal acquisition unit is a battery state signal acquisition device, which can collect the temperature, internal resistance and terminal voltage signals of the battery in real time, and the data concentration unit converts the collected signals into data packets, and output from the data output port.

The working process of the on-line monitoring method of the power communication battery pack provided by the present invention:

When the integrated battery pack is running, the monitoring unit will collect the temperature, voltage, internal resistance, terminal voltage and charge and discharge current signals of the battery in real time, and determine the remaining power of the battery according to the above parameters. alarm threshold, generate alarm records and alarm to users in real time, so as to realize battery status detection and online monitoring, and then upload the above processing results to the monitoring server of the network management center through the network; the relevant production and operation personnel of the network management center can pass the The network monitors the working status information of each battery, and the transmitted data can be consulted and analyzed through professional software, which can be used to graphically display various data, alarm and generate various reports and reports.

It should be emphasized that the embodiments described in this patent are illustrative rather than restrictive, so this example includes but not limited to the embodiments described in the specific implementation manner, anyone skilled in the art according to the technology of this patent Other implementation modes obtained from the scheme also belong to the protection scope of this patent.

Claims (2)

1. an on-line monitoring method for power communication battery pack, is characterized in that: the on-line monitoring method of described power communication battery pack comprises the following step of carrying out in order:

Step 1) integration construct intelligent battery: integral intelligent accumulator is the inner cell batteries that is integrated with monitoring means, monitoring means adopts the low discharging current technology based on internal resistance method to detect the state of accumulator, is provided with the data output interface of monitoring means in cell batteries outside;

Step 2) set up integrated electric battery: the output electrode of 24 joint integral intelligent batteries is composed in series to integrated electric battery mutually, and the data output interface of each integral intelligent battery is connected by netting twine, form the communication interface of integrated electric battery;

Step 3) set up monitoring system: integrated electric battery is connected with comprehensive net router by netting twine, combines net router and be connected with network management center by optical cable;

Step 4) Real-time Collection Monitoring Data: when integrated electric battery operation, the operational monitoring data of each cell batteries of monitoring means Real-time Collection;

Step 5) network management center's Real-Time Monitoring: monitoring means by network by the data upload collecting to the monitoring server of network management center, O&M personnel monitor operating each accumulator in real time by monitoring server.

2. the on-line monitoring method of power communication battery pack according to claim 1, it is characterized in that: in step 1) in, described monitoring means is comprised of signal gathering unit and data centralization unit, the input end of monitoring means is connected with accumulator, its output terminal is connected with the input end of data centralization unit, and the output terminal of data centralization unit is the data-out port of monitoring means; Wherein: signal gathering unit is battery condition signal pickup assembly, temperature, internal resistance and terminal voltage signal that it can Real-time Collection accumulator, data centralization unit converts the signal collecting to image data bag, and exports from data-out port.