Control methods and compensation characteristics of a series active filter for the neutral conductor

IECON'03. 29th Annual Conference of the IEEE Industrial Electronics Society (IEEE Cat. No.03CH37468) Pub Date : 2003-11-02 DOI:10.1109/IECON.2003.1280600

S. Inoue, T. Shimizu, K. Wada

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引用次数: 3

Abstract

Due to the advance of information technologies, a large number of electronic products such as personal computers have been connected to power distribution systems in commercial buildings. Hence, voltage distortion on utility outlets and excessive neutral current on distribution lines have arisen, and those lead to a number of serious problems in the distribution system. Two control methods and the related compensation characteristics of a series active filter connected to the neutral conductor are presented in this paper. The distinct functions of the proposed active filter are mitigation of 3rd-harmonic voltage and neutral current in a three-phase four-wire distribution system in a building. The required power of the proposed active filter is less than 10% of that of the harmonic producing loads. A control method of the dc capacitor voltage on the active filter circuit is also described. it is clarified through experiments that one those two functions of the active filter can be realized selectively and the dc capacitor voltage of the active filter can be regulated to a desired value.

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中性导体串联有源滤波器的控制方法及补偿特性

由于信息技术的进步，大量的电子产品，如个人电脑已经连接到商业建筑的配电系统。因此，出现了公用事业插座电压畸变和配电线路中性点电流过大等问题，导致配电系统出现了一系列严重问题。本文介绍了接中性导体的串联有源滤波器的两种控制方法及其补偿特性。所提出的有源滤波器的独特功能是减轻建筑物中三相四线制配电系统中的三次谐波电压和中性电流。所提出的有源滤波器所需功率小于产生谐波负载功率的10%。本文还介绍了一种在有源滤波电路上控制直流电容电压的方法。实验表明，有源滤波器的这两种功能之一是可以选择性地实现的，有源滤波器的直流电容电压是可以调节到理想值的。

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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IECON'03. 29th Annual Conference of the IEEE Industrial Electronics Society (IEEE Cat. No.03CH37468)

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