Model Reference Adaptive Current Control Method for Dual Three Phase Permanent Magnet Synchronous Machine

A model reference adaptive current control (MRAC) method for the dual three phase permanent magnet synchronous machine is proposed in this paper. Although predictive current control shows an excellent transient performance compared to the PI controller method, its steady state performance can deteriorate if there is any error in estimating the machine’s parameters. The proposed MRAC method estimates the disturbance due to the error in the parameters and feeds the error forward to the controller to eliminate it. While maintaining the predictive control’s good transient performance, the proposed method can also improve the predictive control’s steady state performance under parameter variation. As a result, it can be easily implemented along with the existing predictive current control. Theoretical background and the stability of the proposed system is derived. Simulation results are provided to validate the performance of the proposed method.