The invention relates to an electric vehicle motor vector control method and an electric vehicle motor control device, and the method comprises the steps: obtaining a current value and a voltage value of a motor, and a first electric angular speed of the motor when an electric vehicle runs; inputting the current value, the voltage value and the first electrical angular velocity into a sliding mode flux linkage observer under the condition that the first electrical angular velocity is greater than a preset threshold value to obtain a first rotor flux linkage parameter; inputting the current value, the voltage value and the first rotor flux linkage parameter into a nonlinear flux linkage observer to obtain a second rotor flux linkage parameter; performing arc tangent calculation on the second rotor flux linkage parameter to obtain a target electrical angle, and performing differential calculation on the target electrical angle to obtain a target electrical angular velocity; and inputting the target electrical angle and the target electrical angular velocity into a double-closed-loop control system, so that the double-closed-loop control system performs vector control on the motor. According to the invention, the problem that the vector control accuracy of the motor is low is solved.
本申请涉及一种电动车电机矢量控制方法和电动车电机控制装置,该方法包括:在电动车运行时,获取电机的电流值和电压值、以及电机的第一电角速度;在第一电角速度大于预设阈值的情况下,将电流值、电压值以及第一电角速度输入滑膜磁链观测器,得到第一转子磁链参数;将电流值、电压值以及第一转子磁链参数输入非线性磁链观测器,得到第二转子磁链参数;对第二转子磁链参数进行反正切计算,得到目标电角度,并对目标电角度进行微分计算,得到目标电角速度;将目标电角度以及目标电角速度输入双闭环控制系统,以使双闭环控制系统对电机进行矢量控制。通过本申请,解决了对电机的矢量控制准确度较低的问题。
Electric vehicle motor vector control method and electric vehicle motor control device
电动车电机矢量控制方法和电动车电机控制装置
15.04.2025
Patent
Elektronische Ressource
Chinesisch
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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