Digital implementation of a new type of hybrid filter with simplified control strategy

APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285) Pub Date : 1999-03-14 DOI:10.1109/APEC.1999.749761

B.N. Singh, Bhim Singh, A. Chandra, K. Al-haddad

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引用次数: 28

Abstract

A new type of hybrid active filter to compensate harmonics of a nonlinear load is presented in this paper. The proposed topology of hybrid filter combines a shunt passive filter (PF) and a shunt active filter (AF). A series inductor between both the filters is introduced to create a harmonic voltage source at the input of nonlinear load. A diode bridge rectifier with R-C load is considered as a nonlinear load. An indirect current controlled voltage source inverter (ICC-VSI) is considered as an AF. A simple control algorithm based on proportional plus integral control of a self-supporting DC bus voltage of the shunt AF is implemented on a TMS320C31 DSP. The passive filter is tuned to compensate 5/sup th/ and 7/sup th/ harmonics, while the AF compensates the rest of harmonics of the load current. A laboratory prototype model of the proposed hybrid filter is developed and its performance is examined. Experimental results are given and discussed.

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一种新型混合滤波器的数字实现与简化控制策略

提出了一种补偿非线性负载谐波的新型混合有源滤波器。所提出的混合滤波器拓扑结构结合了并联无源滤波器(PF)和并联有源滤波器(AF)。在两个滤波器之间引入串联电感，在非线性负载的输入端产生谐波电压源。将具有rc负载的二极管桥式整流器视为非线性负载。本文以一种间接电流控制电压源逆变器(ICC-VSI)为研究对象，在TMS320C31 DSP上实现了一种简单的基于比例加积分控制的并联AF直流母线电压控制算法。无源滤波器被调整为补偿5/sup /和7/sup /谐波，而自动对焦补偿负载电流的其余谐波。建立了混合滤波器的实验室原型模型，并对其性能进行了测试。给出了实验结果并进行了讨论。

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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APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285)

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