A Fuzzy Comprehensive Evaluation On The Economical Operation Of Distribution Network Based On Analytic Hierarchy Process

In the network security risk assessment of power quality，There are a lot of work todo at home and abroad，But distribution network operation economic evaluation, relatedliterature is too little.In the whole operation of the power grid, distribution network in thepower grid in total loss of area of110kV and below grid total loss more than half. Usedfor distribution network research are only to one aspect analysis and long lack of influencedistribution network operating various factors comprehensive system research. In order tofully grasp the situation of economic operation of distribution network, it is necessary touse the correct evaluation system to evaluate whether reasonable distribution networkoperation. In this way, it not only can understand distribution network running status, butcan find out the distribution network in the operation of the process weak links andinfluencing its economic factors,.It is an important guiding significancethe to thedistribution network planning and construction and the transformation in the futureFirst, this paper analyzes the domestic and foreign existing distribution networkevaluation of running condition, operation characteristics of the distribution network inChina, established a scientific distribution network operation efficiency evaluation indexsystem, index system of the space truss structure as well as loss of distribution networkload distribution network equipment four aspects don’t and quantified the correspondingindex.Secondly, using the analytic hierarchy process to determine subjective judgmentmatrix of indicators, evaluation index weights used to calculate distribution networkoperation, numerical simulation is used to validate the method.Finally, when the distribution network running economy evaluation index system andcorresponding weight calculation method to determine, on the basis of it the actualoperation data, to determine the corresponding secondary indexes correspondingmembership function model and parameters, through the fuzzy comprehensive evaluationmethod to evaluate the operation condition of power distribution network in a given area,finally complete the main functions of the analysis and evaluation of power grid system are introduced and its concrete realization.