Operation of Voltage Reactive Power Control Devices based on Cooperation between Two-Voltage Class Transmission Network with PV Systems to Reduce Power Loss

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  • Kaneko Akihisa
    Graduate School of Advanced Science and Engineering, Major in Electrical Engineering and Bioscience, Waseda University
  • Yoshizawa Shinya
    Graduate School of Advanced Science and Engineering, Major in Electrical Engineering and Bioscience, Waseda University
  • Hayashi Yasuhiro
    Graduate School of Advanced Science and Engineering, Major in Electrical Engineering and Bioscience, Waseda University
  • Sugimura Shuhei
    Meidensha Corporation
  • Ueda Yoshinobu
    Meidensha Corporation
  • Tanabe Takayuki
    Meidensha Corporation

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Other Title
  • 送電損失低減を目的としたPV連系送電系統における2電圧階級のVQC装置協調運用決定手法
  • ソウデン ソンシツ テイゲン オ モクテキ ト シタ PVレンケイ ソウデン ケイトウ ニ オケル 2 デンアツ カイキュウ ノ VQC ソウチ キョウチョウ ウンヨウ ケッテイ シュホウ

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Abstract

<p>Transmission system operators (TSO) are responsible to manage the power quality within a proper range and to reduce power loss. Voltage reactive power control (VQC) is mainly utilized to manage the power flow. In the conventional VQC scheme, the static condenser (SC) and shunt reactor (ShR) is generally adjusted based on the target value determined for the heavy load condition in each voltage class. On the other hand, the installation of the massive photovoltaic (PV) systems into transmission systems cause the complex power flow such as the short-term fluctuation of power flow and reverse power flow from the lower transmission system to the upper transmission system. Thus, in the future power system with PV systems, the target values of the VQC devices need to be updated in the short-time period considering the interaction between the upper and lower transmission system to manage the power quality and to the reduce power loss efficiently. This paper proposes the optimization methodology for VQC devices in two-voltage class of transmission system using tabu-search and optimal power flow based on the central VQC methodology. To verify the effectiveness of the proposed methodology, the numerical simulation was performed based on the revised IEEJ EAST 30-machine system model.</p>

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