DocumentCode :
2156971
Title :
A simplified three phase PWM rectifier with fixed frequency modulation
Author :
John, Benjamin ; George, V. ; Mishra, Mahesh K.
Author_Institution :
Dept. of Electr. Eng., Rajiv Gandhi Inst. of Technol., India
Volume :
5
fYear :
2010
fDate :
26-28 Feb. 2010
Firstpage :
83
Lastpage :
87
Abstract :
This paper proposes a fixed frequency modulation scheme for a three-phase PWM rectifier operating at unity power factor. It provides a constant and reduced switching frequency for all the switches of the rectifier by controlling the occurrence and duration of the zero vector states indirectly. The two legs of the converter are operated in hysteresis current tracking mode and the third leg is controlled by a square pulse of user-defined frequency. The low harmonic distortion and high input power factor are added advantages of this scheme. Also, it offers simplicity, fast response and robustness. The feasibility of the proposed method is verified through extensive simulation results.
Keywords :
PWM rectifiers; electric current control; switching convertors; constant switching frequency; fixed frequency modulation; high input power factor; low harmonic distortion; reduced switching frequency; square pulse; three phase PWM rectifier; unity power factor; Frequency conversion; Frequency modulation; Harmonic distortion; Hysteresis; Leg; Pulse width modulation; Reactive power; Rectifiers; Switches; Switching frequency; Constant Switching Frequency; Three-Phase PWM rectifier; Unity Power Factor Current Control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer and Automation Engineering (ICCAE), 2010 The 2nd International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-5585-0
Electronic_ISBN :
978-1-4244-5586-7
Type :
conf
DOI :
10.1109/ICCAE.2010.5451515
Filename :
5451515
Link To Document :
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