SPMSM Sliding Mode Control Based on the New Super Twisting Algorithm

To achieve the high-performance control of surface-mounted permanent magnet synchronous motor (SPMSM) speed system, this paper proposes a high-order sliding mode strategy based on new super twisting algorithm (NSTA). This introduces an adaptive term in its proportional original algorithm, which solves low reaching and poor antidisturbance ability due to square root calculation algorithm. The simulation results show that proposed can effectively improve system’s response greatly suppress chattering phenomenon traditional control.