The invention discloses an integrated vehicle-mounted charging system and method compatible with alternating current and direct current charging piles, and relates to the field of alternating current and direct current charging of sectional nine-winding motor winding multiplexing. The problems that when a traditional integrated charging system utilizes a change-over switch to change motor winding wiring and improve the inductance value of a power grid filter, negative-sequence current appears in power grid current, the loss of the charging system is increased, meanwhile, the charging torque fluctuation is large, and motor abrasion is likely to be caused are solved. A change-over switch K1 is arranged between upper bridge arms of an a-phase half bridge and a b-phase half bridge in a first three-phase half-bridge inverter; the change-over switch K2 is arranged between upper bridge arms of an a-phase half bridge and a b-phase half bridge in the second three-phase half-bridge inverter; and the change-over switch K3 is arranged between the upper bridge arms of the a-phase half bridge and the b-phase half bridge in the third three-phase half-bridge inverter. The method is mainly used for multiplexing the winding of the nine-winding motor, and is mainly used for driving and charging multiplexing.
兼容交直流充电桩的集成车载充电系统及方法,涉及分段式九绕组电机绕组复用的交直流充电领域。解决了传统集成充电系统利用切换开关改变电机绕组接线,提升电网滤波器的电感感值的同时,引起电网电流中出现负序电流,加重充电系统的损耗,同时充电转矩波动较大,易造成电机磨损的问题。本发明切换开关K1设置在第一三相半桥逆变器中a相半桥和b相半桥的上桥臂之间;切换开关K2设置在第二三相半桥逆变器中a相半桥和b相半桥的上桥臂之间;切换开关K3设置在第三三相半桥逆变器中a相半桥和b相半桥的上桥臂之间。本发明主要用于对九绕组电机绕组进行复用,主要用于驱动和充电复用。
Integrated vehicle-mounted charging system and method compatible with alternating current and direct current charging piles
兼容交直流充电桩的集成车载充电系统及方法
2023-11-07
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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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