大型地下变电站运行问题分析及对策措施

为了适应现代城市发展规划要求满足城市景观的需要,变电站已进入户内甚至地下,越来越多的城市出现了地下变电站.目前国际上投产的500kV地下变电站仅日本东京的新丰洲变电站一例,投产运行的220千伏变电站已有一定量的实例.上海电网人民广场地下变电站已有10年的运行历史,上海市电力公司与华东电力设计院就地下变运行的经验和关键问题共同进行了专题研究,进而提出一些对策措施或意见,意在对今后地下变电站的设计和运行起到一定的指导作用.

Operational problems for large underground substations and relevant countermeasures

To meet the requirement of the modern city development plan which emphasizes landscaping,the substation has become indoor and even underground.Up to now,in the world there is only one 500 kV underground substation which has put into operation,i.e.the underground substation in Tokyo of Japan.However,the number of 220 kV underground substations is not small.For example,the underground People Square Substation of Shanghai Power Grid has operated for ten years.The experience in underground substation operation and key problems are analyzed,and countermeasures and suggestions are proposed.