Energy Storage System utilizing Lare Capacity Electric Double-Layer Capacitors for Peak-Cut of Power Demand

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  • 大容量電気二重層コンデンサを用いたピークカット用電力貯蔵装置
  • ダイ ヨウリョウ デンキ 2ジュウソウ コンデンサ オ モチイタ ピークカット

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Recently, due to a rapid increase of demand for air-conditioning in summer, peak power demand is becoming acute increasingly. Therefore, load factor has a tendency to drop every year. The drop of load factor is leading to a drop in utilization factor of the power facilities and an increase in cost of installation.<br>In this paper, we proposed an energy storage system for peak-cut of power demand, to which is applied large capacity electric double-layer capacitors. This energy storage system has some distinctive characteristics, which are long span of life, maintenance free, preservation of environment, high efficiency at charge/discharge, etc.<br>This paper deals with the circuit arrangement of the proposed energy storage system, the equalized charge method of the capacitors, the control method of the converter at charge/discharge, Finally, the operation characteristics of this system are evaluated by simulation analysis.

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