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| Research on the Power Interconnection of Triple Power Supply System for Beijing South Railway Station |
| LIKang-yan |
| TheThird Railway Survey and Design InstituteGroup Corporation, Tianjin 300142, China |
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Abstract Research purposes:The energy utilization ratio of triple power supply system can be up to 75% -90%, because it is avialble for the system to transfor the energy closedly to the load. However, it is very important to choose the capacity of electric generating set and themode of power interconnection for the system. This paper researches the capability of electric generating set and power interconnection of triple power supply system for Beijing South Railway Station.
Research conclusions:For the currentBeijing SouthRailway Station, it is decided to install two 1 800 kW gas turbine generators after calculation of the electric generating set capacity, and for improving the working efficiency of the generator and saving investmen,t the outputvoltage of the generator is 0.4 kV, after transforming to 10 kV, interconnecting with 2 bus bars to two substations for themain building ofstation and railway freezing room separately. 2 generarors can work independly, so they can be as standby one each other if any of them fails.
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Received: 20 October 2008
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[2] GB 50053)1992, 10 kV及以下变电所设计规范[S].
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[4] 北京恩耐特分布能源技术有限公司.北京南站三联供项 目咨询报告(电力系统)[R].北京:北京恩耐特分布能 源技术有限公司, 2006.
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2009, Vol. 26 
