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The induction motor is easily affected by external disturbances, parameter variations, and uncertain nonlinear ingredients. The paper presents an novel zero-order disturbance observer and disturbance rejection control based on slip regulation. The disturbance observer is based on slip control. The output of observer implements slip error for compensation. Simulation results verify the validity and...
This paper is concerned with vector control of permanent magnet synchronous motor (PMSM). Recent research has indicated that PMSM could become a serious competitor to the induction motor (IM) for high performance servo applications. Mathematical model of a PMSM is developed with the help of Park and Clarke transformations. The concept of vector control is applied to PMSM to obtain linear dynamics...
This paper presents a new kind of direct torque control (DTC) system based on the inverter with double-frequency for the motor drives of electric vehicles (EVs). According to the theory of the converter with double-frequency, the topology of a new kind of inverter with double-frequency is derived, and the operation states of the new circuit are analyzed. This kind of inverter has good dynamic and...
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