Comparison of dynamic characteristics of field oriented control and model predictive control for permanent magnet synchronous motor

Recently, model predictive control (MPC) method becomes a hot topic in the academic circle. As known, field oriented control (FOC) method is widely used in the industrial field. Both two methods have different dynamic responses. The existing researches provide qualitative analyses of dynamic features of two methods. In order to deeply demonstrate the differences between two methods' dynamic features, a quantitative comparison of the dynamic characteristics of FOC and MPC for permanent magnet synchronous motor (PMSM) is presented in this paper. The control methods established by the continuous-time and discrete-time models of the PMSM are introduced, and the detailed analyses are given in overshoot, peak time and stable time from the control theory. From simulation results, it is confirmed that MPC method outperforms FOC method, not only in overshoot, but also in both peak time and stable time.

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