Title :
Low-loss single-switch three-phase AC-DC converter feeding inductive load
Author :
Pomilio, J.A. ; Spiazzi, G.
Author_Institution :
Fac. of Electr. Eng., Univ. Estadual de Campinas, Sao Paulo, Brazil
Abstract :
A three-phase AC/DC converter based on isolated Cuk topology feeding an inductive load is presented. A high power factor is achieved, at constant duty-cycle and switching frequency, by discontinuous input current mode operation. An auxiliary circuit allows zero voltage turn-off while limiting the over-voltage on the switch. PWM control is used to reduce sensitivity to line disturbances and to eliminate the 300 Hz ripple on the output current. Experimental measurements taken on a 400 W prototype confirm theoretical forecasts
Keywords :
AC-DC power convertors; PWM power convertors; load (electric); losses; power factor; switching circuits; 300 Hz; 400 W; PWM control; auxiliary circuit; constant duty-cycle; constant switching frequency; discontinuous input current mode operation; high power factor; inductive load; isolated Cuk topology; low-loss converter; output current; sensitivity reduction; single-switch three-phase AC-DC converter; switch over-voltage; zero voltage turn-off; AC-DC power converters; Circuit topology; DC-DC power converters; Prototypes; Pulse width modulation; Reactive power; Switches; Switching circuits; Switching frequency; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 1995. PESC '95 Record., 26th Annual IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-2730-6
DOI :
10.1109/PESC.1995.474978
