A novel maximum torque per ampere (MTPA) control method based on controller parameters self-modification for interior permanent magnet synchronous machine (IPMSM) drives applied in electric vehicles is presented in this paper. With the adoption of feedforward decoupling compensation, the flux and inductance errors between the nominal value and the actual value are modified. Then the current angle of MTPA can be calculated precisely. The proposed method is simple and easy to be transplanted. Compared with the virtual signal injection control method, the proposed method obtains the same steady-state accuracy of the MTPA control, and obviously improves the dynamic performance in the meantime. On these basis, the experiments are carried out on a 20 kW IPMSM drive system. And the feasibility and effectiveness are verified by the results.

中文翻译：

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基于控制器参数自修正的 IPMSM 系统最大每安培转矩 (MTPA) 控制

本文提出了一种新的基于控制器参数自修正的最大每安培转矩 (MTPA) 控制方法，用于电动汽车的内置永磁同步电机 (IPMSM) 驱动器。采用前馈去耦补偿，修正了标称值与实际值之间的磁通和电感误差。然后可以精确计算MTPA的当前角度。该方法简单易移植。与虚拟信号注入控制方法相比，该方法获得了与MTPA控制相同的稳态精度，同时显着提高了动态性能。在此基础上，在 20 kW IPMSM 驱动系统上进行了实验。并通过结果验证了可行性和有效性。