State Estimation Based On Theoretical Calculation Of Line Losses Online

Line loss is an important indicator in national assessment of the power supply enterprisesand and a comprehensive technical and economic indicators in reflects whether the network structure of a supply network is perfect, whether the operation mode is reasonable, whether the power distribution equipment can meet the load growth and the management level of electricity supply sector. By theoretical calculation of line losses, the distribution of the power grid structure in different periods can be mastered theoretically, problems exists in power grid can be learned,the weak links in power grid can be analysed, the line losses work is targeted, and the loss reduction work be focused. Combined the actual situation of the company, a number of theoretical studies and practical works associated with theoretical line loss has been launched.The program mainly research the application and study of online theoretical calculation of line loss based on the state estimation.The program takes the upgrade of dispatching automation system in Yanggao power support company as an opportunity. Stating estimation based on real-time data to conduce a feasibility calculation of theoretical line loss analysis, then research a theoretical line loss calculation software cooperate with collaborate manufacturers to research a new set of manufacturers, which can meet the needs of the integration of Shanxi Electric Power Company, to achieve data sharing between applications and improve data accuracy of personalized applications. Through theoretical real-time calculation in Yanggao 35kV power grid in the program, the good usefulness of the software has been proved.