The embodiment of the invention provides a battery heating device and method based on charging and discharging of a motor winding and an electric vehicle, and relates to the technical field of electric vehicle power systems. The battery heating device comprises a power battery, a motor controller, a series inductor and a vehicle motor. The motor controller comprises a three-phase inverter and a direct-current bus supporting capacitor, the power battery is connected with the series inductor, one end of the direct-current bus supporting capacitor is connected with the series inductor, the other end of the direct-current bus supporting capacitor is connected with the power battery, and the three-phase inverter is connected with the direct-current bus supporting capacitor in parallel; the vehicle motor is connected with the three-phase inverter, the winding inductor of the vehicle motor is controlled by the three-phase inverter of the motor controller to store and release energy, alternating-current oscillating current is generated on the direct-current bus, and heat is generated on the internal resistor of the power battery through the alternating-current oscillating current. The battery heating device can achieve the technical effect of improving the heating efficiency of the battery.
本申请实施例提供一种基于电机绕组充放电的电池加热装置、方法及电动车辆,涉及电动汽车动力系统技术领域。该电池加热装置包括动力电池、电机控制器、串联电感器和车辆电机;电机控制器包括三相逆变器和直流母线支撑电容,动力电池与串联电感器连接,直流母线支撑电容的一端与串联电感器连接,直流母线支撑电容的另一端与动力电池连接,三相逆变器与直流母线支撑电容并联;车辆电机与三相逆变器连接,通过电机控制器的三相逆变器控制车辆电机的绕组电感进行储能‑释能,在直流母线上产生交流振荡电流,通过交流振荡电流在动力电池内阻上进行发热。该电池加热装置可以实现提高电池发热效率的技术效果。
Battery heating device and method based on charging and discharging of motor winding and electric vehicle
基于电机绕组充放电的电池加热装置、方法及电动车辆
2023-07-18
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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