Non-Interacting Control of PMSM Based on Exact Linearization Via State Variable Feedback

The non-interacting control method of permanent-magnet synchronous motor (PMSM) is proposed by using exact linearization via state variable feedback. The conditions of exact linearization are discussed with differential geometry method based on PMSM mathematic model. The PMSM linearization and non-interacting control design had been completed in the entire state variable space by state coordinates transformation and state variable feedback transformation. The PI controller designed for PMSM of exact linearization and the control results are researched by simulation method. The simulation results show that the linearization method of PMSM using exact linearization via state variable feedback is feasible and could design PMSM controller for applying other modern control theory based on the proposed method.