配電系統の電圧不平衡改善を目的とした低圧配電用三相-単相マトリックスコンバータ

DOI Web Site Web Site 被引用文献1件 参考文献12件
  • 水谷 遼太
    東京理科大学大学院工学研究科
  • 小泉 裕孝
    東京理科大学大学院工学研究科
  • 廣瀬 健太郎
    東京電力（株）技術統括部技術開発センター配電技術グループ
  • 石橋 一成
    東京電力（株）パワーグリッド・カンパニー配電部配電技術グループ

書誌事項

タイトル別名
  • Three-phase to Single-phase Matrix Converter for Improvement of Three-phase Voltage Unbalance in Distribution System
  • ハイデン ケイトウ ノ デンアツ フヘイコウ カイゼン オ モクテキ ト シタ テイアツ ハイデンヨウ サンソウ-タンソウ マトリックスコンバータ

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抄録

From the global environmental viewpoint, distributed power systems using renewable energy source, such as solar power, wind power, and water power attract much attention. Photovoltaic (PV) system using solar power has a little resource constraint and can be installed easily on the roof of house. Therefore, PV system has been and will be introduced widely. However, in case many PV systems are installed in consumers, the deference of installed PV capacity may cause the load unbalance. In such a case, the difference of the line currents flowing along middle / high-voltage lines can be increased and three-phase voltage unbalance may appear due to the line impedance.  In this paper, a distribution transformer using three-phase to single-phase matrix converter with an AC inductor is proposed to suppress three-phase voltage unbalance. The AC inductor is used for compensation of single-phase power pulsation at any load conditions and either direction of power flow. The proposed method is verified by the simulation with MATLAB/Simulink. In this simulation, the resistive loads and the reactive loads are assumed as the loads in low-voltage line. Reverse power flow from PV systems is represented by a current source with power factor 1.0. Control strategy and simulation results are shown in this paper.

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