Title :
A zero-current-switching based three-phase PWM inverter having resonant circuits on AC-side
Author :
Fujita, H. ; Akagi, H. ; Kohata, M.
Author_Institution :
Okayama Univ., Japan
Abstract :
The authors present a zero-current-switching (ZCS)-based three-phase PWM (pulse-width-modulated) inverter having small resonant circuits on the AC side, whose resonant frequency is 50 kHz. The ZCS inverter can greatly reduce the switching losses and electromagnetic noise. The principle of ZCS operation, the design of the resonant circuits, and the control sequence are described from theoretical and practical points of view. Experimental results obtained from a ZCS PWM inverter driving an induction motor of 2.2 kW are shown to verify the practicability of this device
Keywords :
circuit resonance; induction motors; invertors; pulse width modulation; switching circuits; 2.2 kW; 50 kHz; AC side; ZCS; design; electromagnetic noise; induction motor; resonant circuits; switching losses; three-phase PWM inverter; zero-current-switching; Circuit noise; Electromagnetic interference; Noise reduction; Pulse circuits; Pulse inverters; Pulse width modulation inverters; RLC circuits; Resonant frequency; Switching loss; Zero current switching;
Conference_Titel :
Industry Applications Society Annual Meeting, 1993., Conference Record of the 1993 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-1462-X
DOI :
10.1109/IAS.1993.298994
