Title :
Space-vector controlled soft-switching three-phase PDM AC/DC converter with unity power factor and sinusoidal line current
Author :
Miyagawa, K. ; Nakaoka, M. ; Ogino, Y. ; Murakami, Y. ; Hayashi, K.
Author_Institution :
Dept. of Electr. & Electron. Eng., Kobe Univ., Japan
Abstract :
The authors present the state-of-the-art pulse density modulation (PDM)-type three-phase AC/DC power converter with an active voltage clamped resonant DC link (ACRDCL) network and its digital signal processor (DSP) based digital control strategy to achieve a unity power factor correction and sinewave line current shaping. The new operating principle of the zero-voltage soft-switched three-phase AC/DC converter with a ACRDCL and its instantaneous space voltage vector-based clamping-voltage distributed PDM (modified-PDM) strategy to improve its controllability and operating characteristics are described. Performance evaluations of this modified-PDM converter are discussed using simulation results as compared with the conventional PDM converter. Experimental results for this switch mode rectifier are shown
Keywords :
digital control; power convertors; power factor correction; pulse modulation; rectifiers; signal processing; switched mode power supplies; switching circuits; voltage control; AC/DC power converter; DSP; PDM; ZVS; active voltage clamped resonant; controllability; digital control; digital signal processor; operating principle; performance; power factor correction; pulse density modulation; simulation; sinusoidal line current; soft switching; state-of-the-art; switch mode rectifier; three-phase; unity power factor; voltage control; Analog-digital conversion; Digital modulation; Digital signal processors; Pulse modulation; Pulse shaping methods; Pulse width modulation converters; Resonance; Shape control; Switches; Voltage control;
Conference_Titel :
Industrial Electronics, Control, Instrumentation, and Automation, 1992. Power Electronics and Motion Control., Proceedings of the 1992 International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0582-5
DOI :
10.1109/IECON.1992.254631