晋东南1000kV变电站直流系统配置方案  

Configuration Scheme of DC System for 1 000 kV Southeast Shanxi Substation

作　　者：燕立[1] 盛志宇[1] 

机构地区：[1]北京国电华北电力工程有限公司,北京市西城区100011

出　　处：《电网技术》2009年第10期48-51,共4页Power System Technology

摘　　要：直流系统是为变电站内二次设备提供可靠电源的重要设备,其运行的好坏直接影响变电站乃至电力系统的安全可靠运行。特高压变电站与超高压站相比有直流负荷容量大、二次设备布置分散和直流系统供电距离长的特点。根据晋东南1000kV变电站具体情况对直流系统配置方案进行了论证,并通过对多个方案的技术、经济比较,得出了全站配置2套直流系统为最佳方案的结论,并已在工程中实施,获得了较好的效益。DC system is an important system that provides DC power sources to all secondary devices of substation, so its operation directly impacts the security and reliability of substation and whole power grid. The capacity of DC load in UHVAC substation is much higher than that in EHVAC substations, the secondary devices in UHVAC substation are dispersively arranged and the power supply distance of DC system in UHVAC substation is much longer than that in EHVAC substation. According to practical condition of 1000kV AC Southeast Shanxi substation, the configuration schemes of its DC system are demonstrated and through the techno-economic comparison of several DC system configuration schemes, the conclusion that in this substation two sets of DC system should be configured is obtained and corresponding scheme is chosen as the optimal scheme and adopted.

关 键 词：特高压变电站 直流系统 配置方案 技术经济比较 

分 类 号：TM72[电气工程—电力系统及自动化]