Determination Method for Optimal Installation of Active Filters in Distribution Network with Distributed Generation

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  • Kawasaki Shoji
    Graduate School of Electrical and Electronics Engineering, University of Fukui
  • Hayashi Yasuhiro
    Graduate School of Advanced Science and Engineering, Major in Electrical Engineering and Bioscience, Waseda University
  • Matsuki Junya
    Graduate School of Electrical and Electronics Engineering, University of Fukui
  • Kikuya Hirotaka
    Graduate School of Nuclear Power and Energy Safety Engineering, University of Fukui
  • Hojo Masahide
    Dept. of Electrical and Electronic Engineering, The University of Tokushima

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Other Title
  • 分散型電源が連系された配電ネットワークにおけるアクティブフィルタの最適設置決定手法
  • ブンサンガタ デンゲン ガ レンケイ サレタ ハイデン ネットワーク ニ オケル アクティブフィルタ ノ サイテキ セッチ ケッテイ シュホウ

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Recently, the harmonic troubles in a distribution network are worried in the background of the increase of the connection of distributed generation (DG) and the spread of the power electronics equipments. As one of the strategies, control the harmonic voltage by installing an active filter (AF) has been researched. In this paper, the authors propose a computation method to determine the optimal allocations, gains and installation number of AFs so as to minimize the maximum value of voltage total harmonic distortion (THD) for a distribution network with DGs. The developed method is based on particle swarm optimization (PSO) which is one of the nonlinear optimization methods. Especially, in this paper, the case where the harmonic voltage or the harmonic current in a distribution network is assumed by connecting many DGs through the inverters, and the authors propose a determination method of the optimal allocation and gain of AF that has the harmonic restrictive effect in the whole distribution network. Moreover, the authors propose also about a determination method of the necessary minimum installation number of AFs, by taking into consideration also about the case where the target value of harmonic suppression cannot be reached, by one set only of AF. In order to verify the validity and effectiveness of the proposed method, the numerical simulations are carried out by using an analytical model of distribution network with DGs.

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