Research on the Utilization of Regenerative Energy of Rail Transit Traction System
LI Li-peng1, SHENG Jia-chuan2
1. China Railway Electrification Survey Design & Research Institute Co.Ltd, Tianjin 300250,China; 2. Tianjin University of Finance and Economics, Tianjin 300222, China
Abstract：Research purposes:Widely used in urban rail transit, the VVVF multiple unit trains will generate a mass of energy when they are braking. If this part of energy can be used effectively, it will be of great significance for the energy-saving and cost-reducing of the whole rail transit. At present, there are several kinds of regenerative energy utilization proposals. But difference of saving effect of different schemes is very large, and part of proposal may lead to a waste of energy. Therefore, it is necessary to combine theoretical calculation with practical measurement and make comprehensive analysis on the energy saving effect of current regenerative energy utilization proposals.Research conclusions:This paper constructs the model of rail transit traction power supply system and studies the calculation result and measurement result. The experiments show that: (1)The regenerative energy utilization rate is very high between the vehicles when no regenerative energy absorption devices are installed in traction substations. (2)Traditional proposal of putting regenerative braking resistor in traction substation may not save energy, on the contrary, it will waste energy. (3)When the capacity of electricity utilization device reaches a certain value, the additional capacity will make very little effects on energy saving effect. (4) The research results can be used in the design of rail transit traction power supply system.
李力鹏，盛家川. 轨道交通牵引系统再生能量利用方案研究[J]. 铁道工程, 2014, 31(9): 121-128.
LI Li-peng, SHENG Jia-chuan. Research on the Utilization of Regenerative Energy of Rail Transit Traction System. 铁道工程, 2014, 31(9): 121-128.
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2014, Vol. 31 
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