AC permanent magnet electric driving system with limited power supply modeling in dq coordinate and simulation

This paper presents a novel unified modeling method of permanent magnet AC driving system (PMDS) with limited power source. According to a circuit model consisting of inverter and permanent magnet synchronous motor(PMSM), a average state model is presented rather than the traditional transient model with the PWM control. On this basis, aiming to analyze numerously PMDS with limited power supply, a unified model of PMDS is induced based on law of conservation of energy theory. In the end, the simulation results are given out to intensify the validation of the modeling method in this paper.