Title :
A novel three-phase single-stage zero-switching unity-power-factor power supply
Author :
Huang, Nianci ; Fan, Muwen ; Huang, Shan ; Zhang, Dairun
Author_Institution :
Coll. of Electr. & Inf. Eng., Sichuan Univ., Chengdu, China
fDate :
29 June-1 July 2002
Abstract :
A pollution-free high-power switching mode power supply (SMPS) circuit topology is presented, which compounds three-phase PFC with PS-ZVZCS-PWM Inverter Bridge in a single-stage. Its operation process principle and critical parameters are analyzed. Simulation results of a 36 V/400 A prototype show that the PFC of the system is above 0.995 and the zero-switching mode reduces the EMI mostly. Compared with the normal two-stage system, the single-stage power supply has simpler structure, lower cost, higher efficiency and is easier to control.
Keywords :
PWM invertors; electromagnetic interference; power factor correction; switched mode power supplies; switching convertors; 36 V; 400 A; EMI; PS-ZVZCS-PWM inverter bridge; cost; critical parameters; efficiency; high-power switching mode power supply; soft switching; three-phase PFC; three-phase single-stage zero-switching supply; two-stage system; unity-power-factor power supply; Bridge circuits; Circuit simulation; Circuit topology; Electromagnetic interference; Inverters; Pollution; Power supplies; Switched-mode power supply; Switching circuits; Virtual prototyping;
Conference_Titel :
Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on
Print_ISBN :
0-7803-7547-5
DOI :
10.1109/ICCCAS.2002.1179108
