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WO2018137490A1 - Système de commande pour générateur à aimants permanents monté sur véhicule électrique - Google Patents

Système de commande pour générateur à aimants permanents monté sur véhicule électrique Download PDF

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Publication number
WO2018137490A1
WO2018137490A1 PCT/CN2018/071831 CN2018071831W WO2018137490A1 WO 2018137490 A1 WO2018137490 A1 WO 2018137490A1 CN 2018071831 W CN2018071831 W CN 2018071831W WO 2018137490 A1 WO2018137490 A1 WO 2018137490A1
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WIPO (PCT)
Prior art keywords
circuit
permanent magnet
magnet motor
pmg
buck
Prior art date
Application number
PCT/CN2018/071831
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English (en)
Chinese (zh)
Inventor
张雄峰
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维尔纳（福建）电机有限公司
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Publication of WO2018137490A1 publication Critical patent/WO2018137490A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
    • H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of DC power input into DC power output
    • H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
    • H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
    • H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1582—Buck-boost converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Definitions

  • the invention relates to an electric vehicle, in particular to a control system for an electric vehicle permanent magnet motor.
  • Battery capacity and the power conversion rate of driving a permanent magnet motor are two factors that affect the endurance of new energy vehicles.
  • the current practice is to start with the battery capacity, combine multiple batteries, expand the energy storage capacity, and on this basis, in the vehicle driving process, the permanent magnet motor under braking or inertia The electric energy generated by the rotation is recovered.
  • the conventional constant voltage frequency conversion speed regulation scheme is still adopted, that is, the vehicle battery pack provides a fixed high voltage electric signal to the permanent magnet motor (PMG) drive circuit due to the permanent magnet motor.
  • the drive circuit is usually composed of IGBT.
  • a control system for an electric vehicle permanent magnet motor comprising a battery pack, a permanent magnet motor (PMG) having a winding, a bridge drive circuit, a buck circuit, a first local oscillator fundamental wave signal generation module, and a first local oscillator carrier signal generation Module, limiter adjustment circuit, local oscillator fundamental wave-external signal strobe circuit, SPWM modulation circuit, second local oscillator carrier generation module, PWM modulation circuit, and acceleration adjustment circuit, permanent magnet motor (PMG) winding and bridge drive
  • the circuit, the buck circuit and the battery pack are sequentially connected, the electric signal feedback output on the permanent magnet motor (PMG) winding, the permanent magnet motor (PMG) winding electric signal feedback output end, the first local oscillator carrier signal generating module and the limiting adjustment respectively
  • the input end of the circuit is connected, the output end of the limiting amplitude adjusting circuit, and the first local oscillator fundamental wave signal generating module are respectively connected with the input end of the local oscillator fundamental-external signal
  • control system of the electric vehicle permanent magnet motor further includes a boost circuit, a buck-boost switch circuit, a brake circuit, a charging signal detecting circuit and a charging signal adjusting circuit
  • the boost circuit is connected between the bridge driving circuit and the battery pack.
  • the boost circuit and the buck circuit form a buck-boost circuit
  • the buck-boost switch circuit is connected between the PWM modulation circuit and the buck-boost circuit control terminal
  • brake circuit and the acceleration adjustment circuit are respectively connected to the control end of the buck-boost switch circuit, and the charging is performed.
  • the signal detecting circuit detects an electrical signal between the bridge driving circuit and the buck-boost circuit, the charging signal detecting circuit is connected to the input end of the charging signal adjusting circuit, and the output end of the charging signal adjusting circuit is connected to the input end of the PWM modulation circuit.
  • the boost circuit and the buck circuit form a buck-boost circuit, and a buck-boost switch circuit for controlling the buck-boost circuit buck-boost mode is realized, and the vehicle is operated under different operating conditions forever.
  • the switching between the magneto motor drive and the battery pack charging mode that is, the adjustment acceleration adjustment circuit
  • the acceleration adjustment circuit outputs a corresponding electrical signal to the PWM modulation circuit, and modulates with the electric signal generated by the second local oscillator carrier generation module, and modulates the electric power.
  • the signal is input to the buck-boost switch circuit, and the acceleration adjustment circuit outputs the corresponding control electric signal to the control end of the buck-boost switch circuit, and the buck-boost switch circuit outputs the corresponding electric signal to make the buck in the buck-boost circuit.
  • the DC output of the battery pack is stepped down by the buck-boost circuit, and then supplied to the bridge drive circuit, and the bridge drive circuit outputs alternating current to drive the permanent magnet motor; when the acceleration adjustment circuit is not adjusted and the brake circuit is adjusted, The brake circuit outputs a corresponding electrical signal to the buck-boost switch circuit, and the buck-boost switch circuit performs the corresponding electrical signal.
  • the output is such that the boost circuit in the buck-boost circuit is turned on, and the alternating current generated by the permanent magnet motor (PMG) winding is rectified by the bridge drive circuit, and the buck-boost circuit is boosted, and the voltage is greater than the battery pack voltage, thereby facilitating charging of the battery pack.
  • the permanent magnet motor (PMG) further has a secondary winding having the same phase as the winding, and the secondary winding output end serves as a feedback output end of the permanent magnet motor (PMG) winding electrical signal, and the permanent magnet motor (PMG) secondary winding output terminal,
  • the first local oscillator carrier signal generating module is respectively connected to the input end of the limiter adjusting circuit.
  • the feedback of the electric signal of the conventional permanent magnet motor (PMG) winding is usually a Hall element or a resolver.
  • the Hall element and the resolver function as a position sensor and a voltage sensor respectively to detect the rotor pole of the permanent magnet motor (PMG).
  • the position and voltage signals are transmitted to the controller.
  • the controller calculates the electrical signal generated on the winding and feeds back the output according to the position detected by the Hall element and the resolver, and the voltage signal. Since the voltage is not directly fed back to the winding power-on signal, It is often necessary to use a controller to make the feedback system of the conventional Hall element or the resolver more complicated, and the present application adds a secondary winding in the same phase as the winding in the permanent magnet motor (PMG) because the secondary winding is in phase with the winding.
  • PMG permanent magnet motor
  • the number of phase lines of the permanent magnet motor (PMG) winding is several, the phase lines of the winding are independently drawn, the bridge driving circuit is a combination of several H-bridge circuits, and the number and winding of the H-bridge circuit constituting the bridge driving circuit The number of each phase line is the same, and the phase lines of the permanent magnet motor (PMG) winding are in one-to-one correspondence with the output terminals of the H-bridge circuit of the bridge drive circuit, and the input ends of the H-bridge circuits of the bridge drive circuit are connected with more than one set.
  • a unit body consisting of a battery pack and a buck circuit.
  • Existing automotive permanent magnet motor (PMG) windings are usually triangular or star-connected.
  • the battery pack drives a permanent magnet motor (PMG)
  • PMG permanent magnet motor
  • it is usually a battery pack that simultaneously drives the phase lines of the permanent magnet motor (PMG) winding.
  • the number of battery packs is small, and the electric energy capacity is small.
  • the present invention separates the phase wires of the permanent magnet motor windings independently and independently drives them through a plurality of battery packs, so that more circuits can be connected in the circuit.
  • the battery pack greatly increases the battery capacity in the system.
  • the SPWM modulation circuit and the PWM modulation circuit each include an overcurrent overload protection module, and a driving current detection circuit detects the electrical signals between the bridge driving circuit and the buck circuit, respectively, and the SPWM modulation circuit and the PWM modulation circuit.
  • the overcurrent overload protection module is connected.
  • the driving current detecting circuit detects an electrical signal between the bridge driving circuit and the buck circuit, and feeds back to the overcurrent overload protection module in the SPWM modulation circuit and the PWM modulation circuit, when the driving current detecting circuit detects the bridge driving circuit and the buck circuit
  • the SPWM modulation circuit and the PWM modulation circuit change the output, respectively control the bridge drive circuit and the buck circuit, so that the electrical signal between the bridge drive circuit and the buck circuit is lowered, so that the circuits in the system are Overcurrent overload protection.
  • a sensitivity follower circuit is provided in the acceleration adjustment circuit. To adjust the system response time when driving a permanent magnet motor.
  • the first local oscillator fundamental wave signal generating module the first local oscillator carrier signal generating module, the local oscillator fundamental wave-external signal gating circuit, the SPWM modulation circuit, the second local oscillator carrier generating module, and the PWM modulation circuit
  • the module line or any of the above module lines can be provided by the controller.
  • an over-speed protection circuit is further connected between the electric signal feedback output end of the permanent magnet motor (PMG) winding and the input end of the buck-boost switch circuit. Adjusting the acceleration adjustment circuit to drive the permanent magnet motor (PMG). When the running speed of the on-board permanent magnet motor (PMG) is too high, the overspeed protection circuit inputs the corresponding electrical signal according to the feedback signal of the permanent magnet motor (PMG) winding electrical signal.
  • the voltage is determined by the required rotational speed of the permanent magnet motor controlled by the acceleration adjustment circuit, and therefore, when driving the permanent magnet motor, especially when the rotational speed required for the permanent magnet motor is low, the bridge drive circuit inputs
  • the DC voltage value is relatively small, that is, the input voltage of the IGBT in the bridge driving circuit is reduced, thus reducing the internal consumption of the IGBT, thereby improving the power conversion efficiency of the battery pack and enhancing the endurance capability of the vehicle;
  • the feedback signal output of the permanent magnet motor (PMG) winding will be fed back with the same electrical signal generated on the permanent magnet motor (PMG) winding.
  • the electrical signal fed back from the feedback signal of the permanent magnet motor (PMG) winding is limited. After the adjustment circuit is limited in amplitude, it is incorporated into the generation of the SPWM modulated wave of the control bridge drive circuit, and the bridge drive circuit is controlled to perform variable frequency regulation on the permanent magnet motor (PMG), thus forming a closed loop forever
  • the magneto-motor (PMG) speed is stable in the driver's expectations and has a high modulation efficiency.
  • FIG. 1 is a schematic diagram of a functional structure of a preferred embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a buck-boost circuit of the present invention.
  • a control system for an electric vehicle permanent magnet motor includes a battery pack 1, a permanent magnet motor (PMG) 2 having a winding 21 and a secondary winding 22 of the same phase.
  • PMG permanent magnet motor
  • buck-boost circuit 40 formed by combination of boost circuit 4' and buck circuit 4, first local oscillator fundamental wave signal generating module 5, first local oscillator carrier signal generating module 6, limiting adjustment circuit 7, Local oscillator fundamental wave-external signal gating circuit 8, SPWM modulation circuit 9, second local oscillator carrier generating module 10, PWM modulation circuit 11, buck-boost switch circuit 12, brake circuit 13, acceleration adjustment circuit 14, and charging signal detection
  • the circuit 15, the charging signal adjusting circuit 16, the permanent magnet motor (PMG) winding 21 and the bridge driving circuit 3, the buck-boost circuit 40, the battery pack 1 are sequentially connected, and the output end of the permanent magnet motor (PMG) secondary winding 22, first
  • the local oscillator carrier signal generating module 6 is respectively connected to the input end of the limiter adjusting circuit 7, and the output end of the limiting amplitude adjusting circuit 7 and the first local oscillator fundamental wave signal generating module 5 and the local oscillator fundamental wave-external signal gating circuit respectively
  • the circuit 15 detects an electrical signal between the bridge drive circuit 3 and the buck-boost circuit 40.
  • the charge signal detection circuit 15 is connected to the input of the charge signal adjustment circuit 16, and the output of the charge signal adjustment circuit 16 and the acceleration adjustment circuit 14 are both PWM modulated.
  • the inputs of circuit 11 are connected.
  • the number of phase lines of the permanent magnet motor (PMG) winding 21 is several, the phase lines of the winding 21 are independently drawn, and the bridge driving circuit 3 is a combination of several H-bridge circuits 31, and the H-bridge circuit 31 constituting the bridge driving circuit 3
  • the number is the same as the number of the phase lines of the winding 21, and the phase lines of the permanent magnet motor (PMG) winding 21 are in one-to-one correspondence with the input ends of the H-bridge circuit 31 of the bridge driving circuit 3, and are connected to each other, and the H-bridges of the bridge driving circuit 3
  • a unit body composed of a plurality of battery packs 1 and a buck-boost circuit 40 is connected to an input terminal of the circuit 31.
  • the existing in-vehicle permanent magnet motor (PMG) windings 21 are usually triangular or star-connected.
  • the battery pack drives the permanent magnet motor (PMG) 2
  • it is usually a battery pack to simultaneously carry out the phase lines of the permanent magnet motor (PMG) winding 21
  • Driving under such a structure, the number of battery packs is small, and the electric energy capacity is small.
  • the present invention separates the phase lines of the permanent magnet motor windings 21 independently, and independently drives them through a plurality of battery packs 1, so that the circuit can be independently driven. Connecting more battery packs 1 greatly increases the battery capacity in the system.
  • An overspeed protection circuit 19 is also connected between the output end of the permanent magnet motor (PMG) secondary winding 22 and the input end of the buck-boost switch circuit 12. Adjusting the acceleration adjustment circuit 14 to drive the permanent magnet motor (PMG) 2, when the running speed of the on-board permanent magnet motor (PMG) 2 is too high, the overspeed protection circuit 19 according to the input of the output of the permanent magnet motor (PMG) secondary winding 22 The electric signal is output, and another corresponding electric signal is output to the buck-boost switch circuit 12, so that the boost circuit 4' in the buck-boost circuit 40 is turned on, and the state of the on-board permanent magnet motor (PMG) 2 is changed to The battery pack 1 is in a state of being charged, and the permanent magnet motor (PMG) 2 is no longer driven to avoid excessive speed and the overspeed protection.
  • the SPWM modulation circuit 9 and the PWM modulation circuit 11 each include an overcurrent overload protection module 17, and a drive current detection circuit 18 detects the electrical signals between the bridge drive circuit 3 and the buck-boost circuit 40, respectively, and the SPWM modulation circuit 9 It is connected to the overcurrent overload protection module 17 in the PWM modulation circuit 11.
  • the driving current detecting circuit 18 detects an electrical signal between the bridge driving circuit 3 and the buck-boost circuit 40, and feeds it back to the overcurrent overload protection module 17 in the SPWM modulation circuit 9 and the PWM modulation circuit 11, when the driving current detecting circuit 18 detects
  • the SPWM modulation circuit 9 and the PWM modulation circuit 11 change the outputs, respectively controlling the bridge driving circuit 3 and the buck-boost circuit 40 to enable the bridge driving.
  • the electrical signal between circuit 3 and buck-boost circuit 40 is reduced, thus providing overcurrent protection for each circuit within the system.
  • a sensitivity follower circuit 20 is provided in the acceleration adjustment circuit 14. To adjust the system response time when the permanent magnet motor 2 is driven.
  • the local oscillation fundamental-external signal gating circuit 8 strobes the electrical signal generated by the first local oscillation fundamental wave signal generating module 5.
  • the -boost switch circuit 12 performs a corresponding electrical signal output to turn on the buck circuit 4 in the buck-boost circuit 40, and adjusts the buck-boost circuit 40 based on the electrical signal input to the control terminal of the buck-boost circuit 40.
  • the voltage ratio of the input and output is such that the direct current outputted from the battery pack 1 is stepped down by the buck-boost circuit 40, and then supplied to the bridge drive circuit 3, and the bridge drive circuit 3 outputs alternating current to drive the permanent magnet motor 2, and usually,
  • the acceleration adjustment circuit 14 adjusts the low-speed rotation of the driving permanent magnet motor 2
  • the voltage of the step-down regulation is relatively large, and the DC current input by the bridge type driving circuit is relatively small, and when the acceleration adjustment circuit 14 adjusts and drives the high-speed rotation of the permanent magnet motor 2
  • the voltage of the buck regulation is relatively small to ensure a high voltage input to the bridge drive circuit to drive the permanent magnet motor 2 to operate at a high speed; during the process of adjusting the acceleration adjustment circuit 14 to drive the permanent magnet motor 2, the permanent magnet motor (PMG) 2
  • the secondary winding 22 feeds back the same electrical signal generated on the winding 21 to the limiting adjustment circuit 7.
  • the limiting adjustment circuit 7 generates an electrical signal generated by the module 6 based on the input first local oscillator carrier signal, and inputs the secondary winding 22 The electric signal is subjected to limiting adjustment, and after the adjusted electrical signal is greater than a certain set value, the local oscillator-external signal gating circuit 8 is gated, and the SPWM modulation circuit 9 is input.
  • a first electrical carrier signal LO generated by the generation module 6 outputs modulated with maximum modulation efficiency.
  • the electric signal fed back by the auxiliary winding 22 is small, and the local fundamental wave-external signal strobe circuit 8 strobes the electric signal generated by the first local fundamental signal generating module 5 as the SPWM modulation circuit 9
  • the electrical signal fed back by the secondary winding 22 is limited and strobed, and participates in controlling the modulation of the control electrical signal of the bridge driving circuit 3 to achieve optimal modulation efficiency.
  • the brake circuit 13 when the brake circuit 13 is adjusted during the vehicle operation, on the one hand, the output of the SPWM modulation circuit 9 is turned off, and the brake circuit 13 outputs a corresponding electrical signal to the buck-boost switch circuit 12, The buck-boost switch circuit 12 outputs a corresponding electric signal, so that the buck-boost circuit 40 is turned on for the boost circuit 4'.
  • the charge signal detecting circuit 15 detects the bridge drive circuit 3 and the buck-boost circuit 40.
  • the electrical signal is input to the charging signal adjusting circuit 16 for adjustment, and then input to the PWM modulation circuit 11 to be modulated with the electrical signal generated by the second local oscillator carrier generating module 10, and the modulated electrical signal is input to the buck-boost switch.
  • the circuit 12 performs corresponding output, and adjusts the voltage ratio of the input and output of the buck-boost circuit 40 according to the electrical signal input to the control terminal of the buck-boost circuit 40.
  • the alternating current generated by the permanent magnet motor (PMG) 2 passes through the bridge driving circuit.
  • the buck-boost circuit 40 boosts and charges the battery pack 1.
  • a single IGBT in the bridge driving circuit 3 serves as a diode, and in the bridge structure, rectifies and rectifies the alternating current generated by the permanent magnet motor (PMG) 2 into direct current.
  • the control system of the electric vehicle permanent magnet motor shown in the above preferred embodiment of the present invention has the following beneficial effects: 1. Adjusting the acceleration adjustment circuit 14, the acceleration adjustment circuit 14 outputs a corresponding electrical signal to the PWM modulation circuit 11, and the second The electric signal generated by the local oscillator carrier generating module 10 is modulated, and the modulated electric signal is input to the buck-boost circuit 40 to turn on the buck circuit 4, and the direct current output from the battery pack 1 is lowered by the buck circuit 4 in the buck-boost circuit 40.
  • the bridge drive circuit 3 is supplied to drive the permanent magnet motor 2, and since the DC power input from the bridge drive circuit 3 is obtained by step-down regulation of the buck-boost circuit 40, the voltage ratio of the step-down regulation is adjusted by the acceleration.
  • the rotational speed of the permanent magnet motor 2 controlled by the circuit 14 is determined, and therefore, when the permanent magnet motor 2 is driven, particularly when the rotational speed required for the permanent magnet motor 2 is low, the bridge drive circuit 3 inputs
  • the DC voltage value is relatively small, that is, the input voltage of the IGBT in the bridge driving circuit 3 is reduced, thus reducing the internal consumption of the IGBT, thereby improving the power conversion efficiency of the battery pack 1 and enhancing the vehicle. Endurance capacity;
  • the output of the secondary winding 22 of the permanent magnet motor (PMG) 2 will be fed back with the same electrical signal generated on the winding of the permanent magnet motor (PMG) 2, and the electrical signal fed back from the feedback output of the permanent magnet motor (PMG) 2 winding.
  • the limiting adjustment circuit 7 is limited in amplitude, it is incorporated into the generation of the SPWM modulated wave of the control bridge type driving circuit 3, and the bridge driving circuit 3 is controlled to perform variable frequency speed regulation on the permanent magnet motor (PMG) 2, thus A closed loop stabilizes the permanent magnet motor (PMG) speed as expected by the driver, which has a higher modulation efficiency.
  • the feedback of the electric signal of the permanent magnet motor (PMG) winding 21 can be performed by using a Hall element, or a pair of the same phase as the winding 21 can be added to the permanent magnet motor (PMG) 2.
  • the feedback output terminal, the output end of the permanent magnet motor (PMG) secondary winding 22, and the first local oscillator carrier signal generating module 6 are respectively connected to the input end of the limiter adjusting circuit 7.
  • the permanent magnet motor (PMG) 2 can be single-phase, three-phase or other multi-phase structure, and the phase line of the permanent magnet motor (PMG) winding 21 can be a triangular or star connection output. It is also possible to independently output the output for the permanent magnet motor (PMG) 2 and the bridge drive circuit 3 of different structures.
  • the corresponding The bridge drive circuit 3 is usually a three-phase bridge structure; when a plurality of phase lines of the permanent magnet motor (PMG) winding 21 are independently outputted, when the three-phase six-wire output structure is used, the corresponding bridge drive circuit 3 is three groups.
  • the H-bridge combined bridge structure is shown in Figure 1.
  • all of which are basic functional module structures, and the replacement structure of the modules having the same function in the chip or chip with the same function is within the protection scope of the present invention, such as the first local oscillator fundamental wave signal generating module 5 and the first local oscillator carrier.
  • the signal generating module 6, the local oscillator fundamental wave-external signal strobing circuit 8, the SPWM modulation circuit 9, the second local oscillator carrier generating module 10, the PWM modulation circuit 11, any one of the module lines or any of the module lines may be controlled by a controller such as Provided by the microcontroller.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Dc-Dc Converters (AREA)

Abstract

L'invention concerne un système de commande pour un générateur à aimants permanents (PMG) monté sur un véhicule électrique, comprenant un bloc-batterie (1), un PMG (2) doté d'un enroulement, un circuit d'attaque de type pont (3), un circuit abaisseur (4), un premier module de génération de signal d'onde fondamentale d'oscillation locale (5), un premier module de génération de signal de porteuse d'oscillation locale (6), un circuit de réglage de limitation d'amplitude (7), un circuit de déclenchement de signal externe d'onde fondamentale d'oscillation locale (8), un circuit SPWM (9), un second module de génération de porteuse d'oscillation locale (10), un circuit PWM (11) et un circuit de réglage d'accélération (14). Selon le système de commande pour un PMG monté sur véhicule électrique, lorsque le PMG (2) est entraîné, la tension d'entrée d'un IGBT dans le circuit d'attaque de type pont (3) est abaissée correctement en fonction de la vitesse de rotation du PMG (2) devant être réglé, de sorte que le frottement interne de l'IGBT est réduit, l'efficacité de conversion d'énergie électrique du bloc-batterie (1) est améliorée et la durée de vie de la batterie montée sur véhicule est améliorée ; en outre, les mêmes signaux électriques générés sur l'enroulement du PMG (2) sont renvoyés et incorporés dans la commande de la génération d'ondes SPWM du circuit d'attaque de type pont (3), de sorte que la vitesse de rotation du PMG (2) est stabilisée selon une attente d'un conducteur, et le système de commande a l'efficacité de modulation la plus élevée.
PCT/CN2018/071831 2017-01-25 2018-01-09 Système de commande pour générateur à aimants permanents monté sur véhicule électrique WO2018137490A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710056197.4A CN106788116B (zh) 2017-01-25 2017-01-25 一种电动车载永磁电机的控制系统
CN201710056197.4 2017-01-25

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WO2018137490A1 true WO2018137490A1 (fr) 2018-08-02

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CN114537226A (zh) * 2022-03-07 2022-05-27 臻驱科技（上海）有限公司 电动汽车的动力总成电路及动力电池加热方法
CN116054337A (zh) * 2023-01-13 2023-05-02 中国铁塔股份有限公司 电源供电装置及方法

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CN106788116B (zh) * 2017-01-25 2023-08-18 维尔纳集电电子科技(福建)有限公司 一种电动车载永磁电机的控制系统
CN108306563A (zh) * 2018-02-05 2018-07-20 上海应用技术大学 刹车系统驱动器
CN117118156B (zh) * 2023-08-29 2024-05-14 深圳山河半导体科技有限公司 一种三相六线直流无刷电机

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