Title :
A pulsewidth-modulated inverter with parallel connected transistors using current-sharing reactors
Author :
Matsui, Keiju ; Murai, Yoshihiro ; Watanabe, Makoto ; Kaneko, Mitsutaka ; Ueda, Fukashi
Author_Institution :
Dept. of Electr. Eng., Chubu Univ., Kasugai, Japan
fDate :
4/1/1993 12:00:00 AM
Abstract :
A technique for parallel connection of transistors by using current-sharing reactors for the pulse-width-modulated (PWM) transistor inverter is reported. The technique not only increases current capacity, but also decreases the output harmonic contents. The output voltage waveforms of the proposed inverter have certain voltage levels during their half cycles, and thus it is anticipated that it will be difficult to analyze the output harmonics. For such waveforms, a frequency analysis approach is described, and its results are verified by experiments
Keywords :
invertors; power transistors; pulse width modulation; reactors (electric); PWM; current-sharing reactors; frequency analysis approach; parallel connected transistors; pulsewidth-modulated inverter; Circuits; Frequency; Harmonic analysis; Inductors; Optical modulation; Performance analysis; Pulse inverters; Pulse width modulation inverters; Thyristors; Voltage;
Journal_Title :
Power Electronics, IEEE Transactions on
