Scheduling Method for Aggregated Photovoltaic-Battery Systems Considering Information Notified by Distribution System Operator

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  • Hyodo Fumiya
    Department of Electrical and Electronic Engineering, Faculty of Science and Technology, Meijo University
  • Sato Yuki
    Department of Electrical and Electronic Engineering, Faculty of Science and Technology, Meijo University
  • Masuta Taisuke
    Department of Electrical and Electronic Engineering, Faculty of Science and Technology, Meijo University
  • Tayjasanant Thavatchai
    Chulalongkorn University

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Other Title
  • 配電事業者からの情報提供に基づくアグリゲータの太陽光発電・蓄電池計画手法
  • ハイデン ジギョウシャ カラ ノ ジョウホウ テイキョウ ニ モトズク アグリゲータ ノ タイヨウコウ ハツデン ・ チクデンチ ケイカク シュホウ

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Abstract

<p>In recent years, the aggregation business has gained a lot of attention in Japan. Aggregators will make contracts with customers with photovoltaic (PV) power systems and battery energy storage systems (BESSs) including electric vehicles (EVs) to participate in electricity markets. Aggregators might have to pay electricity supply-demand imbalance charges when generated and consumed energies contracted at the day-ahead supply-demand market are different from those at the current day operation due to distribution network constraints such as voltage and power flow limitations. Therefore, the information on network constraints is very important for aggregators to determine their day-ahead schedules. In this paper, we evaluated the relationship between aggregator supply-demand schedules and the distribution system operation. It was assumed that the reverse power flow limitations due to network constraints are notified to the aggregators by distribution system operator (DSO). Two cases of the aggregators' schedules of PV systems and stationary BESSs were compared in the simulations. In addition, aggregator strategies for making adequate schedules were evaluated.</p>

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