Establishment of a Standard Analytical Model of Distribution Network with Distributed Generators and Development of Multi Evaluation Method for Network Configuration Candidates

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  • Hayashi Yasuhiro
    Graduate School of Electrical and Electronics Engineering, University of Fukui
  • Kawasaki Shoji
    Graduate School of Electrical and Electronics Engineering, University of Fukui
  • Matsuki Junya
    Graduate School of Electrical and Electronics Engineering, University of Fukui
  • Matsuda Hiroaki
    Graduate School of Electrical and Electronics Engineering, University of Fukui
  • Sakai Shigekazu
    Graduate School of Electrical and Electronics Engineering, University of Fukui
  • Miyazaki Teru
    High Voltage & Insulation Group, R&D Center, Engineering R&D Division, Tokyo Electric Power Company
  • Kobayashi Naoki
    Distribution Engineering Group, Distribution Department, Power Network Division, Tokyo Electric Power Company

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Other Title
  • 分散型電源連系配電ネットワークの標準解析モデルの構築とネットワーク構成候補の多面的評価手法の開発
  • ブンサンガタ デンゲンレンケイ ハイデン ネットワーク ノ ヒョウジュン カイセキ モデル ノ コウチク ト ネットワーク コウセイ コウホ ノ タメンテキ ヒョウカ シュホウ ノ カイハツ

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Abstract

Since a distribution network has many sectionalizing switches, there are huge radial network configuration candidates by states (opened or closed) of sectionalizing switches. Recently, the total number of distributed generation such as photovoltaic generation system and wind turbine generation system connected to the distribution network is drastically increased. The distribution network with the distributed generators must be operated keeping reliability of power supply and power quality. Therefore, the many configurations of the distribution network with the distributed generators must be evaluated multiply from various viewpoints such as distribution loss, total harmonic distortion, voltage imbalance and so on. In this paper, the authors propose a multi evaluation method to evaluate the distribution network configuration candidates satisfied with constraints of voltage and line current limit from three viewpoints ((1) distribution loss, (2) total harmonic distortion and (3) voltage imbalance). After establishing a standard analytical model of three sectionalized and three connected distribution network configuration with distributed generators based on the practical data, the multi evaluation for the established model is carried out by using the proposed method based on EMTP (Electro-Magnetic Transients Programs).

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