The invention relates to the technical field of motors, and particularly discloses a permanent magnet synchronous motor control method based on state transition, comprising the following steps: S1, collecting historical data in the working process of a permanent magnet synchronous motor, the historical data comprising on-off states and the sequence of the on-off states; S2, calculating transition probabilities among different switch states based on historical data, and establishing a transition probability matrix; and S3, establishing a cost equation, calculating a transfer constraint error based on the transfer probability matrix, inputting the transfer constraint error into the cost equation, obtaining a value of the cost equation, and selecting a corresponding switching state as an actual switching state of a next period based on the value. According to the technical scheme, output torque fluctuation and rotating speed fluctuation of the permanent magnet synchronous motor can be reduced, and the riding comfort of an automobile is improved.
本发明涉及电机技术领域,具体公开了一种基于状态转移的永磁同步电机控制方法,包括如下步骤:S1,采集永磁同步电机工作过程中的历史数据,历史数据包括开关状态和开关状态的顺序;S2、基于历史数据,计算不同开关状态之间的转移概率,并建立转移概率矩阵;S3、建立代价方程,基于转移概率矩阵计算转移约束误差,将转移约束误差输入到代价方程中,获取代价方程的取值,基于取值选取对应的开关状态作为下一周期的实际开关状态。采用本发明的技术方案能够减少永磁同步电机输出转矩波动、转速波动,提高汽车的乘坐舒适性。
Permanent magnet synchronous motor control method based on state transition
一种基于状态转移的永磁同步电机控制方法
2021-05-25
Patent
Electronic Resource
Chinese
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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