The invention discloses a flexible interconnection power supply system of an electrified railway. The flexible interconnection power supply system comprises a first transformer and a second transformer which are both connected with a converter and are connected to a first power supply arm and a second power supply arm in parallel; an over-current section protection device is respectively connected with the first power supply arm and the second power supply arm; and a controller which is used for controlling the over-current section protection device to be switched on and switching off the converter when the train position detection device determines that the train drives into the over-current section area of the section post; and used for recovering the over-current section protection device to be in a turn-off state when the train position detection device determines that the train is driven away from the over-current section area, and recovering control over the converter so as to perform active power exchange between the first power supply arm and the second power supply arm. By means of the scheme, flexible adjustment of the traction network power flow can be achieved, a train can stably pass through the electric subsection, and complete electric isolation between the two power supply arms is achieved.
本申请公开了一种电气化铁路的柔性互联供电系统,包括:第一变压器和第二变压器均与变流器连接且分别并联至第一供电臂和第二供电臂;过电分段保护装置分别与第一,第二供电臂连接;控制器用于:当通过列车位置检测装置确定出列车驶入了分区所的过电分段区域时,控制过电分段保护装置导通且关闭变流器;当通过列车位置检测装置确定出列车驶离了过电分段区域时,将过电分段保护装置恢复为关断状态,且恢复对变流器的控制以进行第一供电臂与第二供电臂之间的有功功率交换。应用本申请的方案,可以实现牵引网功率潮流的灵活调节,列车能平稳通过电分段,且实现了两个供电臂之间的完全电气隔离。
Flexible interconnection power supply system of electrified railway
一种电气化铁路的柔性互联供电系统
2021-12-07
Patent
Elektronische Ressource
Chinesisch
IPC: | B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES |
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