摘要
变电站备自投运行方式多达数十种,采用“穷举”运行方式的方法实现变电站备自投是复杂且困难的。提出了110 kV变电站备自投由1个高压侧备自投和1个中压侧备自投、1~3个低压侧备自投组成110 kV变电站备自投的简化方案,简单、易于实施;阐述了高压侧备自投、中压侧备自投与各低压侧备自投之间的配合关系和要求。以最简单的内桥接线变电站为例,通过逻辑代数为理论分析工具,对该变电站备自投运行方式进行理论分析,与穷举的该变电站备自投运行方式结果一样、运行效果一致,证明了该内桥接线备自投的配置与简化是成立的,该分析方法同样适用于其他接线变电站备自投的理论分析。
As there are dozens of operational modes of spare power automatic switching in substations,it is complicated and difficult to implement the spare power automatic switching of substations by means of the“exhaustive”operation mode.A simplified spare power automatic switching scheme is proposed for 110 kV substations,which consists of one high voltage side spare power automatic switching device and one medium voltage side spare power automatic switching device and 1~3 low voltage side spare power automatic switching device.It is also simple and easy to implement.The relationship and requirements between the high voltage side spare power automatic switching,the medium voltage side spare power automatic switching and each low voltage side spare power automatic switching are put forward.Taking the simplest substation with internal bridge connection as an example,theoretical analysis is carried out on the operation mode of spare power automatic switching of this substation with logic algebra as a theoretical analysis tool.The results and the operation effect are the same as those of the exhaustive operation mode.Thus,it is proved that the configuration and simplification of the spare power automatic switching device of the internal bridge connection are valid.This analysis method can also be applied to the theoretical analysis of spare power automatic switching of other wiring substations.
作者
李静
孙东杰
汤大海
LI Jing;SUN Dongjie;TANG Dahai(Zhenjiang Power Supply Branch of State Grid Jiangsu Electric Power Co.,Ltd.,Zhenjiang,Jiangsu 212001,China)
出处
《山西电力》
2023年第3期15-19,共5页
Shanxi Electric Power
基金
江苏省电力公司科技项目(J2016067)。
关键词
变电站
备自投
运行方式
逻辑代数
理论分析
简化方案
substations
spare power automatic switching
operation mode
logic algebra
theoretical analysis
simplification scheme
