Double power sliding mode control of permanent magnet synchronous motor based on high-order sliding mode method

Abstract In view of the shortcomings traditional sliding mode control permanent magnet synchronous motor (PMSM), such as slow convergence, serious speed overshoot and outstanding chattering, an improved dual power approach law is proposed. Combined with equivalent control, a high-order rotor designed by using second-order nonsingular terminal surface, which greatly improves dynamic static performance effectively suppresses chattering. The simulation results show that convergence dual-power reaching faster anti-disturbance ability system significantly improved.