摘要
结合青岛城阳工程实践,对现代有轨电车供电方案关键技术进行分析,并指出多数现代有轨电车负荷等级宜定义为二级负荷,中压网络应采用简单可靠的单环网接线方式;直流牵引系统主接线宜选用简单、可靠、经济性好的单机组单母线方案;牵引变电所间距确定应以杂散电流防护及牵引网网压作为首要判据;建议取消架空地线以简化接触网线索,降低架空接触网对沿线景观影响等。最后,指出现代有轨电车牵引供电方案不应照搬中大运量城市轨道交通的做法,应根据现代有轨电车特点确定合理的供电方式。
Combining practice of the Chengyang project, this study analyzes the key technical points of the power supply system of a modern tramway in the following aspects： most modern tramways may be equipped with a power source of a second-level load; a simple and reliable single ring wire should be used in a medium voltage network; the single-bus configuration with a single transformer–rectifier unit that is simple, reliable, and economical should be adopted for the DC traction power supply system; the stray current protection and voltage drop of the overhead contact wire are prior factors to the arrangement of the traction substation; and the overhead earth wire must be cancelled to reduce the landscape impact. Instead of using the same modes as those in the mass rail transit, the proper power supply plan of a modern tramway should be determined according to the characteristics of a modern tramway.
作者
王凯建
WANG Kaijian(Beijing Urban Construction Design ＆ Development Group Co., Ltd., Beijing 100061)
出处
《都市快轨交通》
北大核心
2018年第3期144-149,共6页
Urban Rapid Rail Transit
关键词
现代有轨电车
牵引供电
变电所间距
中压网络
杂散电流防护
取消架空地线
modem tramway
traction power supply
distance of traction substation
medium voltage network
stray currentprotection
cancellation of the overhead earth wire
