Deadbeat Robust Current Predictive Control for PMSM with Sliding Mode Observer

Deadbeat current predictive control (DCPC) is popular in the electric vehicle drive system for its low harmonic currents and torque ripple, fast response speed, but it is sensitive to the motor parameters. To overcome this problem, a deadbeat robust current predictive control (DRCPC) with sliding mode observer (SMO) is proposed for permanent magnet synchronous motor (PMSM) drives. By observing the disturbance of motor parameters, the SMO can output a compensated voltage and reduce the influence of parameter mismatch. The parameter sensitivity of traditional DCPC is analyzed, and the parameter design of SMO is discussed. The simulation results show the effectiveness of the proposed DRCPC algorithm under variation of various motor parameters.