Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1993.07b
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- Pages.853-855
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- 1993
A Multipulse-Voltage Source Rectifier System with a Three-Phase Diode Circuit in order to improve the Input Current Waveforms
입력 전류 파형 개선을 위한 다펄스 3상 다이오드 전압원 정류 시스템
- Im, Seong-Goun (Dept. of Electrical Eng. Chonbuk Univ.) ;
- Park, Hyun-Chul (Dept. of Electrical Eng. Chonbuk Univ.) ;
- Lee, Seong-Ryong (Dept. of Control & Instrumentation Eng. Kun San Univ.) ;
- Yu, Chul-Ro (Dept. of Electrical Eng. Chonbuk Univ.)
- Published : 1993.07.18
Abstract
In this paper, a further improved system obtaining very low distorted waveforms of input ac currents of three phase rectifier circuit is proposed. The proposed system consists of an uncomplicated 24 pulse diode bridge rectifier that is transformerless, by adding only switching circuit which consists of two switchs to conventional system. Also to optimum the effectiveness or the harmonic reduction, the optimum turn ratio of an autotransformer and the optimum switching control angle are decided by computer simulation. And then, the voltage waveform obtained has a total harmonic distortion of 8.1%, and the predominant harmonics 23th and 25th. This paper describes operation principle, analysis of the waveforms of input voltage and current. The theoretial results are verified through simulation.
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