Title :
Study of the dynamic process of AC machine powered by PWM source
Author :
Xianliang, Lu ; Hanguang, Wu
Author_Institution :
Dept. of Electr. Eng., Fuzhou Univ., China
Abstract :
Based on the abc fundamental reference axis system, the dynamic process of an AC machine with PWM control is discussed in detail. The induction machine is a nonlinear high-order system. This system becomes more complicated when a nonsinusoidal PWM power source is introduced to the motor. Therefore, the machine behaves in a continuous periodic transient process. States according to switch pattern for the machine performance supplied by PWM including dead-band interval preventing shoot-through fault are studied in detail; a mathematical model is established. The performance of machine powered by PWM is explored based on abc frame. The simulation result using MATLAB is also presented
Keywords :
PWM invertors; induction motors; machine theory; switching circuits; 3-phase inverter; AC machine; MATLAB; PWM control; abc fundamental reference axis system; continuous periodic transient process; dead-band interval; dynamic process; induction machine; induction motor; nonlinear high-order system; nonsinusoidal PWM power source; shoot-through fault prevention; switch pattern; Equations; Inductance; Induction machines; Magnetic fields; Mathematical model; Power system modeling; Pulse width modulation; Stator windings; Switches; Voltage;
Conference_Titel :
Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on
Conference_Location :
Shenyang
Print_ISBN :
7-5062-5115-9
DOI :
10.1109/ICEMS.2001.970746
