基于2阶低通滤波的永磁同步电机滑模控制

Sliding Mode Control for Permanent Magnet Synchronous Motors Based on Second-order Low-pass Filter

采用基于2阶低通滤波的永磁同步电机滑模控制的控制策略,运用低通滤波和锁相环法进行转子速度和转子角度的估算,并用角度补偿法提高转子角度估算的准确性。仿真结果表明,无论永磁同步电机是在空载还是在额定负载下运行时,在允许的误差范围内,转子的转速和位置的估计值都能够稳定快速地收敛到实际值。

The use of sliding mode control of permanent magnet synchronous motor control strategies based on second-order low-pass filter,the use of the low-pass filter and phase-locked loop method to estimate the rotor speed and rotor angle, and angle compensation method to improve the accuracy of the estimates of the rotor angle.The simulation results show that, regardless of permanent magnet synchronous motor in no-load or full-load within the permissible error range, the estimated value of the rotor speed and position can be stable and fast converge to the actual value