The invention discloses an electrified railway traction power supply system and method based on a multi-source access structure. The system comprises a power supply unit, an energy storage unit and atraction network unit. The power supply unit at least comprises two of a distributed wind turbine generator, a distributed photovoltaic group, a fuel battery pack, a diesel engine/small hydropower station group, a power distribution network and a high-voltage power grid. The energy storage unit comprises energy storage equipment, an energy storage converter and a split traction transformer. According to the electrified railway traction power supply system and method, the excessive dependence on a high-voltage power grid is avoided. Natural endowment of wind, light, water and the like of an electrified railway construction site and other convenient power supplies can be realized. An energy supply system is flexibly formed, safe, reliable and continuous power supply of a traction power supply network under a weak net rack or even without a net rack is realized by utilizing the energy migration technical characteristics of 'full-time convergence and on-demand release' of the energy storage unit, and meanwhile, a plurality of adverse problems of an existing electrified railway traction power supply system are solved.
本申请公开了一种基于多源接入结构的电气化铁路牵引供电系统及方法,所述系统包括电源单元、储能单元与牵引网单元,所述电源单元至少包括分散式风电机组、分布式光伏组、燃料电池组、柴油机/小水电组、配电网和高压电网中的两种;所述储能单元包括储能设备、储能变流器和分裂式牵引变压器。本发明所述的电气化铁路牵引供电系统及方法,摆脱了对高压电网的过渡依赖,可根据电气化铁路建设地的风、光、水等自然禀赋及其他便利电源,灵活组成能量供给系统,利用储能单元“全时汇聚、按需释放”的能量迁移技术特性,实现薄弱网架甚至无网架下的牵引供电网安全、可靠、持续的供电,同时解决现有电气化铁路牵引供电系统的诸多不利问题。
Electrified railway traction power supply system and method based on multi-source access structure
基于多源接入结构的电气化铁路牵引供电系统及方法
10.04.2020
Patent
Elektronische Ressource
Chinesisch
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