Modeling of energy saving in substations feeding DC metro systems based on appropriate location of energy storage elements

2021 3rd International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE) Pub Date : 2021-03-11 DOI:10.1109/REEPE51337.2021.9388021

A. Korolev, Maxim Shevluygin, M. Belov, D. Pletnev, Alexander Murzintsev, K. Zhgun

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Abstract

Energy storage elements based on lithium-ion batteries became a part of new generation of power systems. One of the most efficient places of energy storage elements implementation is DC traction system because of train regenerative breaking mode. The experiment made in 2012 in Moscow metro shows advantages of energy storage elements installation at 2 substations even at the worst conditions for regenerative breaking. Authors extended that experiment to digital simulation to show the potential advantages of energy saving in ideal conditions. Authors considered two different locations of energy storage element. The first location is DC bus of the first substation. The second location is the point in the middle between the first and the second substations. The results show the significant advantages of its connection to the point in the middle between substations and provides better operation conditions.

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基于储能元件合理位置的直流地铁变电站供电节能建模

基于锂离子电池的储能元件成为新一代电力系统的组成部分。由于列车的蓄热分断方式，直流牵引系统是储能元件实施效率最高的场所之一。2012年在莫斯科地铁进行的实验表明，即使在最恶劣的再生中断条件下，在2个变电站安装储能元件也具有优势。作者将该实验扩展到数字模拟，以显示在理想条件下节能的潜在优势。作者考虑了两种不同位置的储能元件。第一个位置是第一变电站的直流母线。第二个位置是在第一个和第二个变电站之间的点。结果表明，它与变电站中间点的连接具有明显的优势，提供了较好的运行条件。

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2021 3rd International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)

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