Robustness Improvement of Predictive Current Control for H-LVPMM Considering Parameter Variation

This paper presents an optimized predictive current control (PCC) for a Halbach array-linear linear vernier permanent magnet machine(H-LVPMM). The stability and robustness of the PCC are affected by parameter variation. Toward this, a modified proportional integral disturbance observer (PIDO) is proposed to estimate the disturbance voltage value caused by parameter error and inject the correspondent observed component into the control system. Experimental results show the validity of the introduced control scheme.