Title :
Quasi soft-switching partly decoupled three-phase PFC with approximate unity power factor
Author :
Xu, David M. ; Yang, C. ; Kong, J.H. ; Qian, Zhaoming
Author_Institution :
Inst. of Power Electron., Zhejiang Univ., Hangzhou, China
Abstract :
This paper proposed a decoupled PFC concept and a novel three-phase PFC circuit operated in quasi zero voltage switching mode. Its three phase voltages are decoupled partly in its power topology, therefore approximate unity power factor can be obtained with a simple control strategy. This converter has been verified by simulation results and successful application in a 5 kW switching mode power supply (SMPS). It is a good choice for a system with high power, high frequency, high reliability, low THD of the line current and high power factor. Finally, its design equations are derived from its further analysis
Keywords :
harmonic distortion; power convertors; power factor correction; reliability; switched mode power supplies; approximate unity power factor; converter; decoupled power factor correction; design equations; high frequency; high power; high power factor; high reliability; line current THD; low THD; partly decoupled three phase voltages; partly decoupled three-phase PFC; power topology; quasi soft-switching; quasi zero voltage switching mode; switching mode power supply; Circuit simulation; Circuit topology; Equations; Frequency; Power system reliability; Reactive power; Switched-mode power supply; Switching converters; Voltage control; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1998. APEC '98. Conference Proceedings 1998., Thirteenth Annual
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-4340-9
DOI :
10.1109/APEC.1998.654013
