Research And Application On High Reliability Evaluation Methods For Distribution Network Of Beijing Power Supply Areas

Exploring pressing issues in the current reliability status and problems of Beijing urban grid,the paper researches the comprehensive evaluation system of Beijing urban grid based on Analytic hierarchy process-AHP and Delphi,which analyzes the various grid criteria by the classification and hierarchy.The results of report can be beneficically used to supply the quantitative data and the direction of making decision for raising the rate of power supply reliability of Beijing urban grid more than 99.999%.Based on the results of the evaluation and the analysis of the current status of urban grid,the paper formulates the reform solutions that are available for reference to urban power distribution network planning in middle and short term.The paper develops the evaluation principles and criteria for Beijing urban grid as well.Among which,the research reflects the utility and feasibility of the power network evaluation.