Restraint Method of Voltage Total Harmonic Distortion in Distribution Network by Power Conditioner Systems using Measured Data from IT Switches

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  • Kawasaki Shoji
    Graduate school of Electrical and Electronics Engineering, University of Fukui
  • Shimoda Kazuki
    Graduate school of Electrical and Electronics Engineering, University of Fukui
  • Tanaka Motohiro
    Graduate school of Electrical and Electronics Engineering, University of Fukui
  • Taoka Hisao
    Graduate school of Electrical and Electronics Engineering, University of Fukui
  • Matsuki Junya
    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

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Other Title
  • センサ開閉器情報を利用した複数台PCSによる配電ネットワークにおける総合電圧ひずみ率抑制手法
  • センサ カイヘイキ ジョウホウ オ リヨウ シタ フクスウダイ PCS ニ ヨル ハイデン ネットワーク ニ オケル ソウゴウ デンアツヒズミ リツ ヨクセイ シュホウ

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Recently, the amount of distributed generation (DG) such as photovoltaic system and wind power generator system installed in a distribution system has been increasing because of reduction of the effects on the environment. However, the harmonic troubles in the distribution system are apprehended in the background of the increase of connection of DGs through the inverters and the spread of power electronics equipment. In this paper, the authors propose a restraint method of voltage total harmonic distortion (THD) in a whole distribution network by active filter (AF) operation of plural power conditioner systems (PCS). Moreover, the authors propose a determination method of the optimal gain of AF operation so as to minimize the maximum value of voltage THD in the distribution network by the real-time feedback control with measured data from the information technology (IT) switches. In order to verify the validity of the proposed method, the numerical calculations are carried out by using an analytical model of distribution network interconnected DGs with PCS.

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