The Vector Magnetic Circuit Model Based Deadbeat Predictive Current Control of Pmsm Drives With Disturbance Observer

Deadbeat predictive current control (DPCC) is widely adopted in permanent-magnet synchronous motor (PMSM) control systems owing to its merits including fast dynamic response, high steady-state accuracy, and elimination of complex parameter tuning procedures. Considering the critical dependency of DPCC on model accuracy and the oversight of eddy current reaction in conventional PMSM modeling, this paper extends the vector magnetic circuit (VMC) -based PMSM model and DPCC strategy by proposing a novel generalized proportion-integral observer (GPIO) with its discrete-time implementation and parameter design guidelines. Simulation results indicate that the VMC-model-based DPCC demonstrates enhanced current regulation precision, reduced settling time, and reduced current prediction error compared to conventional DPCC, under identical disturbance and observer conditions. From the perspective of disturbance observation and compensation performance, the enhanced DPCC performance by incorporating the eddy current reaction in the VMC-PMSM model has been verified.