WO2022041099A1 - Système et procédé de gestion de récupération d'énergie de moteur à réluctance élevée - Google Patents

Système et procédé de gestion de récupération d'énergie de moteur à réluctance élevée Download PDF

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Publication number
WO2022041099A1
WO2022041099A1 PCT/CN2020/112012 CN2020112012W WO2022041099A1 WO 2022041099 A1 WO2022041099 A1 WO 2022041099A1 CN 2020112012 W CN2020112012 W CN 2020112012W WO 2022041099 A1 WO2022041099 A1 WO 2022041099A1
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WO
WIPO (PCT)
Prior art keywords
motor
power supply
assembly
voltage
energy recovery
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PCT/CN2020/112012
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English (en)
Chinese (zh)
Inventor
林继谦
陈育良
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威刚科技股份有限公司
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Publication date
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Priority to PCT/CN2020/112012 priority Critical patent/WO2022041099A1/fr
Publication of WO2022041099A1 publication Critical patent/WO2022041099A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • 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
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles

Definitions

  • the invention relates to a high reluctance motor, in particular to a high reluctance motor energy recovery management system and method.
  • Electric vehicles Become people's preferred means of transportation. Different from bicycles, electric vehicles do not need to be driven by human beings. They are labor-saving and fast than bicycles, and people can travel longer distances. Electric vehicles usually use a motor as a power component. At present, in the application of electric vehicles, in order to reduce weight and high power density, most of the motors are designed with high speed as the design criterion. However, in order to meet the requirements of high power density, most of the motor devices are designed with built-in magnet motors. And supplemented by weak field control to achieve.
  • Field weakening control uses the controller to weaken the back EMF of the motor when the motor is high speed, so that the battery voltage can still be higher than the motor back EMF, and the current can still flow into the motor to maintain the driver.
  • this also comes with risks: if the field weakening depth of the motor is very deep, such as the field weakening operation at 2 times the base speed, if the controller fails and the field weakening disappears, the back EMF will be twice the battery voltage, and this 2 times the battery voltage may induce insufficient withstand voltage of the switch components and cause over-voltage burnout.
  • the switch components may suffer from insufficient current withstand and over-current burnout.
  • the instantaneous current flowing to the battery is very large, which will cause the battery to be damaged.
  • the technical problem to be solved by the present invention is to provide a high-reluctance motor energy recovery management system, which is suitable for motor devices, in view of the deficiencies of the prior art.
  • the motor device has a motor, a power supply assembly, and a switch assembly.
  • the motor is connected to the power supply assembly and the switch assembly.
  • the power supply component supplies the power required for the motor to operate.
  • the high reluctance motor energy recovery management system includes detection components and control components.
  • the detection component is connected to the motor and is configured to detect parameters of the motor device, the parameters including the rotational speed of the motor and the current and voltage of the switch component, the motor and the power supply component.
  • the control component is connected to the detection component and the switch component.
  • the control unit is configured to control the operation state of the switch unit, so as to drive the motor to run at a high speed in a driving mode, reduce the lead angle of the motor according to the parameters, so that the back electromotive force of the motor is higher than the voltage of the power supply unit, so that the motor can be operated at a high speed.
  • a portion of the motor's current recharges the power supply assembly.
  • the control unit controls the operation state of the switch unit according to the parameters, the recovery capability of the power supply unit and the throttle state of the motor device, and adjusts the lead angle of the motor to suppress the parameters within the safe value range.
  • the open-circuit back EMF of the motor device is less than the voltage of the power supply assembly, and in the pick-up mode, the control assembly controls the booster circuit to boost the back EMF of the motor to exceed the voltage of the power supply assembly. Voltage.
  • the electric motor device is an electric vehicle.
  • the present invention provides an energy recovery management method for a high reluctance motor, which is suitable for a motor device.
  • the motor device has a motor, a power supply assembly, and a switch assembly.
  • the power supply component supplies the power required for the motor to operate.
  • the high reluctance motor energy recovery management method includes the following steps: detecting a parameter of the motor device, the parameters including the rotational speed of the motor and the current and voltage of the switch component, the motor and the power supply component; controlling the operation state of the switch component to drive the motor at high speed operate in a drive mode; in drive mode, reduce the lead angle of the motor according to the parameters, so that the back EMF of the motor is higher than the voltage of the power supply component; and in the drive mode, use a part of the current of the motor to recharge the power supply components.
  • the high-reluctance motor energy recovery management method further includes the following steps: when the motor is running at a medium speed, the back electromotive force of the motor device open circuit is greater than the voltage of the power supply component but less than the withstand voltage of the switch component, and enters the recovery process. mode; and in the pick-up mode, according to the parameters, the recovery capability of the power supply assembly and the throttle state of the motor device, the operating state of the switch assembly is controlled, and the lead angle of the motor is adjusted to suppress the parameters within a safe value range.
  • the high-reluctance motor energy recovery management method further includes the steps of: when the motor is running at a low speed, the back EMF of the motor device open circuit is less than the voltage of the power supply component, and the motor is kept in the pick-up mode; The back EMF is boosted to exceed the voltage of the power supply components.
  • FIG. 1 is a block diagram of a high-reluctance motor energy recovery management system applied to a motor device according to an embodiment of the present invention.
  • FIG. 2 is a block diagram of a detection component of a high-reluctance motor energy recovery management system for detecting a motor device according to an embodiment of the present invention.
  • FIG. 3 is a block diagram of a high-reluctance motor energy recovery management system according to an embodiment of the present invention controlling the motor device to operate in a drive mode or a pick-up mode.
  • FIG. 4 is a flowchart of the first step of the energy recovery management method for a high reluctance motor according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of the second step of the energy recovery management method for a high reluctance motor according to an embodiment of the present invention.
  • FIG. 6 is a circuit layout diagram of a motor, a switch assembly, and a battery according to an embodiment of the present invention.
  • FIG. 7 is a circuit diagram of a motor according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of current flow of a switch assembly according to an embodiment of the present invention.
  • FIG. 9 is a waveform diagram of currents of a motor, a switch assembly, and a battery according to an embodiment of the present invention.
  • FIG. 10 is a graph of the rotational speed of the motor versus time detected by the high reluctance motor energy recovery management system according to the embodiment of the present invention.
  • FIG. 11 is a graph of torque versus time of the motor detected by the high reluctance motor energy recovery management system according to an embodiment of the present invention.
  • FIG. 12 is a first measured data diagram of the high reluctance motor energy recovery management system according to the embodiment of the present invention.
  • FIG. 13 is a second measured data diagram of the high reluctance motor energy recovery management system according to the embodiment of the present invention.
  • FIG. 1 is a block diagram of a high-reluctance motor energy recovery management system applied to a motor device according to an embodiment of the present invention
  • FIG. 2 is a high-reluctance motor energy recovery system according to an embodiment of the present invention.
  • FIG. 3 is a block diagram of the high reluctance motor energy recovery management system according to the embodiment of the present invention controlling the motor device to operate in the drive mode or the pick-up mode
  • FIG. 7 is the present invention The circuit layout diagram of the motor, switch assembly and battery of the embodiment.
  • the high-reluctance motor energy recovery management system may include a detection component 20 and a control component 30 , and is applicable to a motor device 10 such as but not limited to an electric vehicle.
  • the detection assembly 20 can be connected to the motor device 10 to detect state data of the motor device 10 .
  • the control component 30 can control the operation of the motor device 10 according to the detected state data of the motor device 10 .
  • the motor device 10 may have a motor 11 and a power supply assembly 12 .
  • the power supply component 12 is, for example, but not limited to, one or more batteries, or a battery pack composed of a plurality of batteries.
  • the power supply component 12 can be connected to the motor 11 to supply the power required for the operation of the motor 11 .
  • the detection component 20 can detect the motor 11 and the power supply component 12 of the motor device 10 to obtain parameters 21 of the motor 11 and the power supply component 12 of the motor device 10 , and the parameters 21 can include the rotational speed 211 of the motor 11 , the motor 11 and the power supply Current 212 and voltage 213 of component 12 .
  • Each phase of the motor 11 is connected to a set of upper bridge switches 111 and lower bridge switches 112 .
  • the detection component 20 can be connected to the switch component 110 to detect the voltage and current of the switch component 110 , which can be included in the parameter 21 shown in FIG. 3 .
  • the detection component 20 can be connected to the control component 30 to transmit the detected parameters 21 to the control component 30 .
  • the control element 30 can be connected to the switch element 110 , and can control the operation of the switch element 110 according to the parameter 21 to drive the motor 11 to operate in the drive mode 301 or the pick-up mode 302 .
  • the motor 11 can be a three-phase motor.
  • the switch element 110 shown in FIG. 3 may include the upper bridge switches 1H, 2H, 3H and the lower bridge switches 1L, 2L, 3L shown in FIG. 6 , all of which may be, for example, metal oxide semiconductor field effect transistors (MOSFETs).
  • MOSFETs metal oxide semiconductor field effect transistors
  • the upper switch 1H and the lower switch 1L are connected to one end of the U-phase coil Cou of the motor.
  • the upper switch 2H and the lower switch 2L are connected to one end of the V-phase coil Cov of the motor.
  • the upper switch 3H and the lower switch 3L are connected to one end of the W-phase coil Cow of the motor.
  • the other ends of the U-phase coil Cou, the V-phase coil Cov, and the W-phase coil Cow of the motor are connected to a common contact.
  • the battery with the voltage Vbatt is connected to the upper bridge switches 1H, 2H, 3H and the lower bridge switches 1L, 2L, 3L.
  • the U-phase coil Cou, V-phase coil Cov, and W-phase coil Cow of the motor will generate back electromotive force Eu, Ev, and Ew, respectively. Electromotive force Euv.
  • the detection assembly 20 shown in FIG. 3 can detect the voltage Vbatt of the battery as shown in FIG. 8 and FIG. 9 and the voltages of the three-phase U, V, W of the motor, and can detect the current Ibatt flowing through the battery and the current flowing through the three-phase.
  • the current of the motor, the currents of the upper bridge switches 1H, 2H, 3H and the lower bridge switches 1L, 2L, 3L, such as the currents Iuv, Ion, and Ioff flowing through the U-phase and V-phase of the motor can be included in the detection as shown in Figure 3. parameter 21 generated by component 20.
  • the control unit 30 can control the operation of the switch unit 110 , for example, turn on and control the upper bridge switches 1H, 2H and 3H of any phase to operate, so as to drive the motor 11 to run at a high speed in the drive mode 301 , According to the rotation speed 211 of the detected parameter 21 obtained from the detection component 20, it can be determined that the motor 11 is currently running at a high speed, a medium speed or a low speed.
  • the control unit 30 can reduce the lead angle of the motor 11 according to the detected parameter 21 , so that the back EMF of the motor 11 is higher than that of the power supply unit 12 such as battery voltage. In this way, while the motor 11 is running at a high speed in the driving mode 301 , a part of the current 212 of the motor 11 returns to the power supply assembly 12 to recharge the power supply assembly 12 , so as to achieve the purpose of energy recovery.
  • the current for driving the motor 11 flows from the U-phase of the motor 11 to the V-phase of the motor 11 , and the current recovered by the power supply component 12 flows back from the V-phase of the motor to the U-phase of the motor 11 , which is only for illustration here. , the present invention is not limited to this.
  • the motor 11 can keep running in the driving mode 301 , preventing the control unit 30 from repeatedly switching the operation of the motor 11 between the driving mode 301 and the recovery mode 302 due to the change of the throttle command by the user. state, causing the back EMF to exceed the limit of the control assembly 30 and damage the control assembly 30 or other circuit components.
  • the control assembly 30 can control the operation of the switch assembly 110 , for example, turn on and control the operation of the lower bridge switch 112 of any phase, so as to drive the motor 11 to run at a medium speed.
  • the back electromotive force of the open circuit of the motor device 10 is greater than the voltage of the power supply component 12 such as the battery but less than the voltage of the switch component 110 , and the pick-up mode 302 is entered.
  • the control component 30 adjusts, for example, the lead angle of the motor 11 according to the parameter 21 detected by the detection component 20 to adjust the pick-up voltage and the pick-up current flowing from the motor 11 back to the power supply component 12 to inhibit the motor 11.
  • Other parameters 21 of the circuit components such as the power supply component 12 , the switch component 110 , the control component 30 , etc., such as voltage and current, are within a safe value range.
  • the control assembly 30 can control the operation of the switch assembly 110 , for example, turn on and control the operation of the lower bridge switch 112 of any phase, so as to drive the motor 11 to run at a low speed.
  • the back electromotive force of the open circuit of the motor device 10 is smaller than the voltage of the power supply component 12 such as the battery.
  • the control element 30 can control the operation of the switch element 110 according to the parameter 21 detected by the detection element 20 to drive the motor 11 to keep in the recovery mode, and can adjust the amount of the recovery current.
  • the control unit 30 can control a booster circuit (not shown) to boost the voltage of the motor 11 so that the back EMF exceeds the voltage of the power supply unit 12 .
  • control unit 30 can rapidly increase the lead angle of the motor 11 to increase the current 212 flowing to the motor 11 , so that the energy of the power supply unit 12 enters the motor 11 and the entire vehicle accelerates, but the circuit components need to be restrained Parameter 21 is within safe values to avoid damage to circuit components.
  • FIG. 4 is a flowchart of the first step of the energy recovery management method for a high reluctance motor according to an embodiment of the present invention.
  • the method for energy recovery and management of a high-reluctance motor may include the following steps S101 to S115 , which may be applicable to the above-mentioned high-reluctance motor energy recovery and management system.
  • step S101 the control element 30 is used to control the operation of the switch element 110 to drive the motor 11 to operate.
  • step S103 the control component 30 is used to obtain the energy recovery capability information of the power supply component 12 such as the battery, such as the withstand voltage of the battery, the amount of current that can be recovered, and the circuit components such as the control component 30, the switch component 110, and the motor 11 can be obtained.
  • the withstand voltage is related information such as withstand voltage and current.
  • the detection component 20 is used to detect the accelerator state information of the motor device 10 such as the electric vehicle, such as detecting whether the user steps on the accelerator, the time point and time length of the accelerator.
  • the detection component 20 can detect the rotational speed 211 of the motor 11 , and can detect parameters 21 such as current and voltage of the motor 11 , the power supply component 12 such as the battery, and the switch component 110 , and transmit the obtained throttle information and the detected parameters 21 to the control assembly 30.
  • step S107 the control component 30 is used to determine whether the current rotation speed 211 of the motor 11 is greater than one time of the base rotation speed, such as but not limited to 4000 rotations. If not, that is, when the control component 30 determines that the rotational speed 211 of the motor 11 is equal to or less than one time of the base rotational speed, step S109 is executed. If so, that is, when the control component 30 determines that the rotational speed 211 of the motor 11 is greater than one time of the base rotational speed, step S113 is executed.
  • step S109 the control unit 30 is used to determine that the motor 11 is running at a low speed 211 and other circuit components such as the switch unit 110 are in a safe state, that is, the actual operating voltage of the circuit components will not exceed their own withstand voltage, and will not cause damage to the circuit components .
  • step S111 when the voltage of the motor 11 is too low, the control component 30 can be used to control a boosting module to boost the back EMF of the motor 11 to exceed the voltage of the power supply component 12 such as the battery.
  • step S113 the control component 30 is used to determine that the current rotational speed 211 of the motor 11 is too high, which causes other circuit components such as the switch component 110 to be in an unsafe state.
  • step S115 the control component 30 is used to adjust the lead angle of the motor 11 according to the information obtained in steps S103 and S105 and the detected parameter 21.
  • FIG. 5 is a flowchart of the second step of the method for energy recovery and management of a high reluctance motor according to an embodiment of the present invention.
  • the energy recovery management method for a high reluctance motor according to the embodiment of the present invention may further include the following steps S203 to S211, which can be performed after step S113 and before step S115 as shown in FIGS. Motor energy recovery management system.
  • step S205 it is determined that the motor 11 is operating at a high speed.
  • step S207 the drive motor 11 is kept in the drive mode 301 at high speed.
  • step S115 is performed to reduce the lead angle of the motor 11 so that the back EMF of the motor 11 is higher than the voltage of the power supply component 12 such as the battery. In this way, while the motor 11 is running, a portion of the current of the motor 11 is recharged to the power supply assembly 12 .
  • step S209 it is determined that the motor 11 is operating at an intermediate speed.
  • step S211 the motor 11 is brought into the lift mode 302.
  • step S115 is executed to adjust the lead angle of the motor 11 so as to return the current of the motor 11 to the power supply component 12 such as a battery to recharge the power supply component 12 .
  • FIG. 10 is a graph of the rotational speed of the motor detected by the high-reluctance motor energy recovery management system according to the embodiment of the present invention versus time;
  • FIG. 11 is the high-reluctance motor energy recovery according to the embodiment of the present invention.
  • Figure 12 and Figure 13 are graphs of measured data of the high reluctance motor energy recovery management system according to the embodiment of the present invention.
  • the high reluctance motor energy recovery management system and method provided by the present invention can suppress the voltage, current and other parameters of the circuit components within the safe value range without increasing the cost of the circuit components , to enhance the stability of the motor device, to avoid damage to circuit components, and to manage the energy recovery of the motor at high, medium and low speeds.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

Système de gestion de récupération d'énergie de moteur à réluctance élevée comprenant un ensemble de mesure (20) et un ensemble de commande (30). L'ensemble de mesure (20) mesure une vitesse de rotation d'un moteur (11) et des paramètres tels que le courant et la tension du moteur (11) et un ensemble d'alimentation électrique (12). Lors de la commande d'un ensemble commutateur (110) destiné à entraîner le moteur (11) à fonctionner à une vitesse élevée dans un mode d'entraînement, l'ensemble de commande (30) diminue un angle de sortie du moteur (11) selon les paramètres du moteur (11) et l'ensemble d'alimentation électrique (12), de telle sorte qu'une force contre-électromotrice du moteur (11) est supérieure à la tension de l'ensemble d'alimentation électrique (12), et qu'une partie du courant du moteur (11) est renvoyée pour charger l'ensemble d'alimentation électrique (12) pendant que le moteur (11) fonctionne à une vitesse élevée dans le mode d'entraînement. Un procédé de gestion de récupération d'énergie de moteur à réluctance élevée est en outre divulgué.
PCT/CN2020/112012 2020-08-28 2020-08-28 Système et procédé de gestion de récupération d'énergie de moteur à réluctance élevée WO2022041099A1 (fr)

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PCT/CN2020/112012 WO2022041099A1 (fr) 2020-08-28 2020-08-28 Système et procédé de gestion de récupération d'énergie de moteur à réluctance élevée

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PCT/CN2020/112012 WO2022041099A1 (fr) 2020-08-28 2020-08-28 Système et procédé de gestion de récupération d'énergie de moteur à réluctance élevée

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0345131A (ja) * 1989-07-11 1991-02-26 Nippondenso Co Ltd 定電圧装置
US5982604A (en) * 1997-03-19 1999-11-09 Denso Corporation Power supply apparatus for electronic control unit in automotive vehicle
CN1949655A (zh) * 2005-10-10 2007-04-18 贺雷 电动－发电复用控制方法及其系统
KR20070084818A (ko) * 2006-02-22 2007-08-27 주식회사 이노세이브 자동차의 효율적 운용을 위한 배터리 케어장치
CN101552484A (zh) * 2009-01-12 2009-10-07 熊代荣 电动车反充电转换器
US20100237825A1 (en) * 2006-03-30 2010-09-23 Shindengen Electric Manufacturing Co., Ltd. Battery Charging Device and Delay Angle Control Method for Battery Charging Device
CN102739138A (zh) * 2011-04-08 2012-10-17 财团法人工业技术研究院 具能量回收的无感测元件马达控制方法
CN104167806A (zh) * 2013-06-28 2014-11-26 郑州宇通客车股份有限公司 一种用于混合动力客车超级电容的充电方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0345131A (ja) * 1989-07-11 1991-02-26 Nippondenso Co Ltd 定電圧装置
US5982604A (en) * 1997-03-19 1999-11-09 Denso Corporation Power supply apparatus for electronic control unit in automotive vehicle
CN1949655A (zh) * 2005-10-10 2007-04-18 贺雷 电动－发电复用控制方法及其系统
KR20070084818A (ko) * 2006-02-22 2007-08-27 주식회사 이노세이브 자동차의 효율적 운용을 위한 배터리 케어장치
US20100237825A1 (en) * 2006-03-30 2010-09-23 Shindengen Electric Manufacturing Co., Ltd. Battery Charging Device and Delay Angle Control Method for Battery Charging Device
CN101552484A (zh) * 2009-01-12 2009-10-07 熊代荣 电动车反充电转换器
CN102739138A (zh) * 2011-04-08 2012-10-17 财团法人工业技术研究院 具能量回收的无感测元件马达控制方法
CN104167806A (zh) * 2013-06-28 2014-11-26 郑州宇通客车股份有限公司 一种用于混合动力客车超级电容的充电方法

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