Power Factor Correction for Three- Phase AC-AC Buck Regulator | ||
| ERJ. Engineering Research Journal | ||
| Article 9, Volume 37, Issue 3, July 2014, Pages 293-303 PDF (1.2 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/erjm.2014.66937 | ||
| Authors | ||
| Osama M. Ali Salem1; Haitham Z. Azazi2; Azza E. Lashine2 | ||
| 1Mechanical& electrical research institute National water research Centre, Egypt | ||
| 2Department of electrical Engineering Faculty of engineering Menoufiya University, Egypt | ||
| Abstract | ||
| This paper presents a new configuration of a three-phase AC-AC buck regulator to operate with a three phase inductive loads with a reduced number of controlled switches. It has a simple control with excellent performance. The proposed circuit has high efficiency for adjusting AC power; because it is composed of fewer switches and DC snubbers. The proposed regulator restrains more harmonics of output voltage and the input current flows continuously, thus a nearly unity input power factor is achieved. Also harmonics of input current and load current are almost negligible. The proposed method is implemented using a zero-crossing processing, which allows a greater accuracy than other methods. By simulation, these characteristics are investigated theoretically, and to correlate the measurements with theory, an experimental setup is presented to confirm the simulation results. ل | ||
| Keywords | ||
| AC-AC converter; power factor correction; harmonic distortion; hysteresis control; zerocrossing detector | ||
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