110kV电网πT混合网架结构优化  

Optimization of πT Hybrid Structure of 110 kV Power Grid

作　　者：石智永 王国民 耿琦[1] 张媛 王天华 SHI Zhiyong;WANG Guomin;GENG Qi;ZHANG Yuan;WANG Tianhua(State Grid Zhengzhou Power Supply Co.,Ltd.,Zhengzhou 450000,Henan Province,China;Beijing T&D Power Research Co.,Ltd.,Changping District,Beijing 102206,China)

机构地区：[1]国网郑州供电公司,河南省郑州市450000 [2]天地电研(北京)科技有限公司,北京市昌平区102206

出　　处：《发电技术》2020年第4期354-360,共7页Power Generation Technology

摘　　要：110 kV电网πT混合网架结构在实际运行中存在运维量大、灵活性及可扩展性差的问题,无法满足日益提高的供电可靠性需求。针对上述问题,提出了πT混合电网结构的优化方案,并对优化方案进行技术经济论证;研究现有πT混合结构向链式p接结构过渡的改造方案,并制定110 kV电网的组网原则,指导110 kV电网πT混合网架结构优化的实施及落地。There are some operational problems of theπT hybrid structure,such as large workload of operation and maintenance,poor flexibility and scalability,which can not meet the increasing demand for power supply reliability.In this paper,the optimization scheme of theπT hybrid structure connection structure was put forward,and the technical and economic demonstration of the optimization scheme was carried out.The concrete alteration scheme ofπT mode to chainπconnection mode was studied,and the networking principle of 110 kV power grid was established,which can direct the implementation and landing of the optimization of the 110 kV power grid withπT hybrid structure.

关 键 词：网架结构 πT混合 链式π接 单母分段 

分 类 号：TM72[电气工程—电力系统及自动化]