永磁同步电机逆变器非线性补偿控制

Nonlinear Compensation Control of Inverter for Permanent Magnet Synchronous Motor

提出一种永磁同步电机双自适应矢量滤波逆变器非线性补偿策略。首先,通过一组自适应矢量滤波器谐波解耦网络对电机转子位置和转速进行实时观测,有效降低位置检测误差脉动。其次,通过另一组自适应矢量滤波器谐波解耦网络对逆变器输出电压误差实时检测,对其进行前馈补偿,有效降低电机转矩和转速脉动,改善系统动态性能。实验结果验证了新型永磁同步电机双自适应矢量滤波逆变器非线性补偿策略的有效性和实用性。

A nonlinear compensation strategy for dual adaptive vector filtering inverter of PMSM was proposed.Firstly,a set of adaptive vectorical filter harmonic decoupling network(AVF-HDN)was used to observe the rotor position and speed of the motor in real time,and the position detection error pulsation could be effectively reduced.Secondly,another AVF-HDN was used to detect the output voltage error of the inverter in real time,the feedforward compensation was used to reduce the torque and speed pulsation of the motor effectively,the dynamic performance of the system was improved.Experiment results verify the effectiveness and practicability of the new nonlinear compensation strategy for the dual adaptive vector filtering inverter of PMSM.