Study On Input-Output Model Of Comprehensive Line Loss And Decomposition Strategy

With the exhaustion of fossil energy and the incerasement of energy saving awareness,enengy consevation and emission reducetion become more and more popular in our daily life.While in power grid,energy loss is an inevitable problem,which make reduction line loss a regular work content in electric power enterprice.However,due to the lack of integral model and method of line loss management and decomposition strategy,line loss reduction work is unscientific and uneconomical.Firstly,this paper analysed the loss reduction methods and theoretical line loss measuremts,with investigarion and survey,main line loss influencing factors and loss reduction methods were summarized from three aspects,which were line property,operation parameter and management factor.Secondly,calculated the loss of the main and distribution power grid through established line and transformer loss models repectively.What's more,this paper examined the models with examples.Then,analysed and calculated the power saving quantity and investment of main loss reduction methods,on the basis of that,established the input-output model of line loss reduction project.Similarly,also tested the model with examples of line change,transformer change and reactive power compensation.The results showed that transformer change was more economical than line change and reactive power compensation.Lastly,this paper came up with the line loss decomposition coefficients and strategies based on the previous models.And the calculation examples confirmed the rationality and effectiveness of the strategies.To sum up,this paper established the input-output model and decomposition strategy of comprehensive line loss after considering the reality situation.So to help electric power enterprise chose more economical loss reduction methods and to guide the line loss management work,which avoid the blindness in daily work.Through calculation and comparison of diffirent loss reduction methods,more rational way can be applied to manage line loss problem.And scientific line loss decomposition strategy is helpful to enhance employee motivation and line reduction work.Furthermore,the input-output model and decomposition strategy means a lot in energy saving work of the whole power grid,and also have great reference value.