驼峰轨道电路175 Hz测长电源设计与实施  

Design and Implementation of 175Hz Distance-to-coupling Measurement Power Source for Track Circuit in Hump

作　　者：张海旭 ZHANG Haixu(Xi＇an Siyuan Kechuang Urban Rail Transit Technology Development Co Ltd, Xi＇an Shanxi 710054, China)

机构地区：[1]西安思源科创轨道交通技术开发有限公司,陕西西安710054

出　　处：《中国铁路》2017年第9期99-103,共5页China Railway

摘　　要：测长轨道电路送受电一般采用50?Hz或25?Hz电源供电,极有可能受到由于电力机车牵引造成的电气化轨道区段干扰,因此需要一种与电气化轨道区段现有常用频率不同的电源供电以保证安全。同时,固定频率的变频电源在目前也可实施。在最新设计中,测长轨道电路送受电采用175?Hz电源供电。试验研究结果表明,该175?Hz测长电源设计简洁、性能可靠、保护功能完备,可满足驼峰测长轨道电路的供电要求。In previous design, 50 Hz or 25 Hz power source is used for distance-to-coupling measurement track circuit, which is probably interfered in electrified track section due to the hauling electric locomotive. Therefore, a power source with different frequency compared with current common frequency in electrified section is more reliable. Meanwhile, power source with fixed frequency is also applicable. In the latest design, distance-to-coupling measurement track circuit use 175 Hz power source. And tests show that such design is of concise design, reliable perfbnnance and complete protection, being able to provide power for distance-to-coupling measurement track circuit in hump.

关 键 词：驼峰轨道电路 测长电源 变频电源 APFC 辅助电源 逆变电路 保护电路 

分 类 号：U284.2[交通运输工程—交通信息工程及控制]