Title :
A voltage source three phase PWM converter with chopper circuit
Author :
Matsui, Keiju ; Katayama, Tomohiro ; Takase, Shinichi ; Yang, Yue
Author_Institution :
Dept. of Electr. Eng., Chubu Univ., Kasugai, Japan
Abstract :
This paper presents a novel strategy of a PWM power converter to control output voltage using a chopper circuit. Voltage source PWM converters are unsuitable for general purposes with wide adjustable voltage range. However, the surge voltage at switching becomes small and the input current waveforms have low harmonics and less resonant oscillations as compared with the current source power converters. In this circuit, the input current waveform is controlled by the PWM power converter with the fixed optimum voltage modulation factor and the output voltage amplitude is adjusted by the chopper circuit with very fast response and precise control. The results are verified by experiments. Finally, a control scheme for application to an AC motor drive is presented and discussed
Keywords :
AC-AC power convertors; PWM power convertors; choppers (circuits); harmonic distortion; power system harmonics; voltage control; AC motor drive; chopper circuit; input current waveform harmonics; optimum voltage modulation factor; output voltage amplitude; resonant oscillations; voltage-source three-phase PWM AC-AC power converter; Amplitude modulation; Choppers; Circuits; Power system harmonics; Pulse width modulation; Pulse width modulation converters; Resonance; Surges; Switching converters; Voltage control;
Conference_Titel :
Power Conversion Conference - Nagaoka 1997., Proceedings of the
Conference_Location :
Nagaoka
Print_ISBN :
0-7803-3823-5
DOI :
10.1109/PCCON.1997.638312
