A Development of an Evaluation Method of the Locational Value of Distributed Batteries as a Voltage Control Device in a Distribution System with Large Penetration of Photovoltaic Generation Systems

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  • Tamiya Kenki
    Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo
  • Asano Hiroshi
    Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo Energy Innovation Center, Central Research Institute of Electric Power Industory
  • Bando Shigeru
    Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo Energy Innovation Center, Central Research Institute of Electric Power Industory

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  • 太陽光発電が大量導入された配電系統における分散形蓄電池の地点別価値評価手法の開発
  • タイヨウコウ ハツデン ガ タイリョウ ドウニュウ サレタ ハイデン ケイトウ ニ オケル ブンサンケイ チクデンチ ノ チテン ベツ カチ ヒョウカ シュホウ ノ カイハツ

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Abstract

<p>Recently, photovoltaic generation (PV) systems have been integrated into electricity systems in Japan to reduce carbon dioxide emissions and enhance energy security. However, high penetration of PV will cause voltage rise problems especially in suburban distribution systems. One of the promising solutions to address the voltage rise is control of distributed battery energy storage systems by distribution system operators (DSO). When feed-in tariffs for distributed PV end, some customers who own PV will purchase a battery storage system to increase their self-consumption of power. Hence, DSO can reasonably control the voltage by using those batteries if they are located on desirable sites. This paper presents the economic evaluation of batteries as alternative facilities for voltage control such as SVC in each scenario. As a result, the locational capacity value of distributed batteries varied from node to node. The maximum value was 17,800 JPY/kWh/year in SVC 1 scenario, and 8,800 JPY/kWh/year in SVC 0 scenario.</p>

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