Abstract：A solid-rotor permanent magnet synchronous motor (PMSM) is designed in this paper, and a field-circuit-motion coupled time-stepping finite element analysis(FEA) model is presented for analyzing this kind of solid-rotor motor, and the difficult problem to calculate rotor parameters is solved. The rotor resistance variation with speed difference is considered, and the finite element analysis involving external circuit and electromagnetic field is provided. A moving air-gap boundary method combining motor motion equation is adopted to simulate the transient process of motor. The performance of a 22kW self-designed solid-rotor motor is analyzed using the proposed model, and the calculation results of back EMF and starting torque are tally well with those from tests, which indicates that the proposed method in this paper is effective and exact, and that it can be used to analyze other kind of solid-rotor motor.
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2011, Vol. 26 
