The invention discloses a motor parameter identification method, a motor controller, a vehicle and a storage medium. The method comprises the following steps: acquiring working parameters of the PMSM in a current control period; determining a first expected direct-axis voltage and a second expected direct-axis voltage according to the current direct-axis current, the given direct-axis current and the injection direct-axis current; determining a first expected quadrature-axis voltage and a second expected quadrature-axis voltage according to the current quadrature-axis current, the given quadrature-axis current and the injection quadrature-axis current; performing adaptive filtering processing on the current direct-axis current and the current quadrature-axis current, and determining a first direct-axis component, a second direct-axis component, a first quadrature-axis component and a second quadrature-axis component; constructing identification equations, wherein the number of the identification equations is not less than the number of the identification parameters; and solving the identification equation according to the identification parameter of the previous control period to obtain the identification parameter of the current control period. According to the scheme, the identification precision of the identification parameters can be improved, so that accurate control of the PMSM is realized, and meanwhile, the hardware cost of the electric drive system is reduced.
本发明公开了一种电机参数的辨识方法、电机控制器、车辆及存储介质。该方法包括:获取PMSM在当前控制周期的工作参数;根据当前直轴电流、给定直轴电流和注入直轴电流,确定第一期望直轴电压和第二期望直轴电压;根据当前交轴电流、给定交轴电流和注入交轴电流,确定第一期望交轴电压和第二期望交轴电压;对当前直轴电流和当前交轴电流进行自适应滤波处理,确定第一直轴分量、第二直轴分量、第一交轴分量和第二交轴分量;构建辨识方程,辨识方程的数量不少于辨识参数的数量;根据上一控制周期的辨识参数求解辨识方程,得到当前控制周期的辨识参数。本方案能够提升辨识参数的辨识精度,从而实现对PMSM的精准控制,同时降低了电驱系统的硬件成本。
Motor parameter identification method, motor controller, vehicle and storage medium
一种电机参数的辨识方法、电机控制器、车辆及存储介质
2024-11-08
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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