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The efficiency-oriented control strategies are very important to obtain high-efficiency performance of permanentmagnet synchronous motor (PMSM) drive systems. This paper proposes a novel analytic system loss model of PMSM drive system which can consider about both losses of PMSM and power converter losses. The losses of PMSM consist of two parts: stator iron losses and stator copper losses which...
As the permanent magnet synchronous motor (PMSM) system is the key part of power system in electric vehicles (EVs), the efficiency of PMSM system has great influence on the energy consumption of EVs. To increase the endurance mileage of EVs in one charge, it is important to improve the system efficiency of PMSM drive system. This paper proposes a novel analytical nonlinear loss model for PMSM system...
This paper investigates a method to increase the energy economy of motors for an electric vehicle (EV) traction system. The low torque region of an EV motor is frequently used in everyday urban driving. Pulse-width modulation (PWM) carrier harmonic loss accounts for a high percentage of total loss for EV motors in this region. This paper reveals the relationship between fundamental and harmonic iron...
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