Energy Saving in DC Electric Railways by Battery Substation

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  • 直流電気鉄道における蓄電池を設置した変電所による省エネ対策の検討
  • チョクリュウ デンキ テツドウ ニ オケル チクデンチ オ セッチ シタ ヘンデンショ ニ ヨル ショウエネ タイサク ノ ケントウ

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Abstract

New rolling vehicles used in dc electric railways are of the regenerative type. At less busy time a part of regenerative power is not used for powering vehicles, and canceled by changed air brake. Recently, significant attention has been paid to the development of secondary batteries for hybrid and electric motorcars. The use of this battery enables reduction in electric power consumption. Because we can charge excess regenerative power and use for powering vehicles after.<br>Before the fact we compared the actual and simulated effective coefficient of regenerative energy, we confirmed the suitability of the simulation model. In this simulation, we studied the energy-saving effect of the battery substations and determined the battery capacity at which maximum power saving is achieved. We found that the power consumption could be reduced remarkably by using a 15-20kWh battery substation.

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