基于改进线路注入技术的三相整流器谐波电流降低

2013 International Conference on Electrical Communication, Computer, Power, and Control Engineering (ICECCPCE) Pub Date : 2013-12-01 DOI:10.1109/ICECCPCE.2013.6998763

H.I. Zynal, Shawkat Mohammed Younis

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引用次数: 4

摘要

本文提出了一种改进的线路注入技术，以降低三相交直流整流器产生的输入线路电流谐波。在传统的谐波电流注入方法中，当注入三次谐波电流的均方根值等于直流负载电流时，谐波电流减小最佳。因此，功率二极管的峰值电流比没有注入的情况下增加了72%。本文采用了一种改进的谐波电流注入方法，该方法采用了连接在整流器输入线上的三双向开关。接通接通零电流线路的开关，向其注入谐波电流。当注入三次谐波电流等于直流负载电流的三分之一时，该方法得到了最优的谐波抑制。因此，功率二极管的峰值电流仅增加了23.5%，而输入电流的总谐波失真(THD)小于5%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Harmonic current reduction of three-phase rectifier based on modified line injection technique

This paper presents a modified line injection technique to reduce the input line current harmonics generated by three-phase AC/DC rectifiers. In conventional harmonic current injection method the optimum harmonic current reduction is obtained when (root mean square) (rms) value of the injection third harmonic current equals the DC load current. Therefore the power diode peak current is increased by 72 % compared to without injection case. In this paper a modified harmonic current injection is applied using a three-bidirectional switches connected to the input lines of the rectifier. The switch that is connected to line with zero current will be turned on to inject the harmonic current to it . In this method optimum harmonic reduction is obtained when the injection third harmonic current equal , one third of the DC load current. Therefore the power diode peak current is increased by 23.5% only and total harmonic distortion (THD) of the input current is less than 5% is obtained.

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来源期刊

2013 International Conference on Electrical Communication, Computer, Power, and Control Engineering (ICECCPCE)

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