Modeling of T grid connection and automatic generation of district level largescreen dispatching power flow diagram

 

 

XV Guohong1, ZHANG Jianmin1, JI Qingfeng2, CHEN Guoen3, HUANG Sheng1, XIANG Wei1

 

(1.College of Automation, Hangzhou Dianzi University, Hangzhou 310018, China; 2.State Grid Lishui Power

Supply Company, Lishui 323000, China; 3.State Grid Jiaxing Power Supply Company, Jiaxing 314000, China)

 

 

Abstract: In order to solve the problems of a lots T connection points and T connection lines that exist in 110kV electric power grid. The technology of layout optimization and the normal routing optimization was investigated. In addition, T connection substation could be replaced back to a T connection point by the technology. After the analysis of a unified modeling for T connection points and T connection lines, the relationship between T connection point and T connection line was established. A method that T connection substation could be replaced back to a T connection point by a special routing algorithm was presented. The needs of district level power corresponding diagram were evaluated on the provincial grid large screen power flow diagram was generated by automatic generation software, the automatic generation of largescreen dispatching power flow diagram for district level network were tested. The experimental results show that the software is reliable and successful applications have been achieved for several district level dispatching center.

 

Key words: district power system; T connection point; T connection line; modeling of T grid connection; dispatching largescreen; power flow diagram; diagram automatic generation