Abstract:

Traditional permanent magnet synchronous motor control method, torque ripple is big, poor anti-jamming capability of defects, and cannot meet the requirement of the high performance, ISMC (Integral Sliding Mode Control) method is introduced into the permanent magnet synchronous motor speed control system, and deduced the corresponding control law, to achieve the speed and torque overshoot is effectively suppressed, and strong anti\|jamming capability, with fast and good, higher precision. By Matlab 7.8 Simulation results show that: for a given change in the system, as well as outside interference, integral sliding mode controller has better robustness than traditional direct torque control, the proposed method can achieve permanent magnet synchronous motor output switch moments fast response and accurate tracking of performance requirements.

Key words: permanent magnet synchronous motor, torque tracking, integra sliding mode control(ISMC), robustness