Development And Application Of The Software Of Electromagnetic Ring Based On The Selected Branch Exchange Method In Zhangye City Distribution Network

With the prosperity of the national economy and the domestic electricity market, the continuous development of city construction, city load is increasing, and higher demands about power quality and reliability is proposed. A number of important or sensitive loads, even short-term power outages, can also cause significant economic loss or adverse political impact. Under the situation that require distribution network more reliable, reasonable and efficient. There is important practical significance to realize the power transfer of city power grid.System research and development includes two modules of graphics editing function and closed loop current analysis. The graphics function includes system network mapping, generating network topology automatically and initializing the database. Closed loop current analysis module includes transient shock current calculation, the steady state current calculation and power flow adjustment. By a detailed analysis of the closing loop power flow, adjust the power flow and find the factors affecting the closing loop current. By adjusting the closing loop power flow thus changing the closing loop current, achieve the purpose of safety co-rings. The purpose of distribution network electromagnetic loop operation analysis system which is based on Zhangye network structure and operation mode is that operators can operate according to the calculation. Electromagnetic loop operation analysis system plays a role in safe operation and operation mode arrangements of Zhangye city distribution network.