The Parameter Identification of PM Synchronous Motor

A method of parameter identification for PMSM which has the preferable worth of engineering application is introduced in the paper.The stator resistance (R)is detected using DC test,and L_d、L_q can be measured by applying one pulse voltage to PMSM.Applied the normal torque current to PMSM,the mechanical time constant t_m is identified.Identify the rotor flux linkage Ψ~r under the condition of speed driven.In the end,the effect to the veracity of the paramrter identification due to the dead-time is analyzed. The semi-physical simulation in SaberDesignet proved the correction and showed the practicability of the method.