Research On Clustering Analysis And Governance Scheme Evaluation Of Medium Voltage Distribution Network Lines Based On Voltage Quality

The voltage quality of power distribution network is directly related to economic efficiency of the electric power enterprise and the experience of the power consumer.With the rapid growth of load,on the one hand,the characteristic of large quantity,complex types and so on is more prominent,there are some medium voltage lines' voltage quality deteriorated caused by overlong power supply radius,overload and so on.On the other hand,power user require better voltage quality with the wide application of precision equipment,which press electric power enterprises to improve the voltage quality governance and planning management level of medium voltage distribution network.The study on voltage quality of thousands of medium voltage lines inevitably involves the processing and analysis of big data,because distribution network has the characteristics of wide coverage,large quantity,complex types and so on.The planning management of medium voltage lines voltage quality need choose targeted governance plan according to the type of lines.So the paper carries out the research on clustering analysis and governance scheme evaluation of medium voltage distribution network lines based on voltage quality,which to explore the retrofit planning guidelines and governance selection method of medium voltage distribution network lines.First of all,depthly analyse voltage quality influencing factors of the medium voltage distribution network line from line attribute,operation parameters,management factors and environmental factors.In view of the mass data of influence factor indexs,introduce the factor analysis algorithm to realize the screening of index dimensionality.Set up clustering index system of medium voltage distribution network.Then,the fuzzy clustering algorithm is applied in the classification of medium voltage distribution network line using its characteristics of the “birds of a feather flock together”.The paper puts forward three clustering classification models to adapt to voltage quality classification of the medium voltage distribution network on different occasions and purposes.Finally,build the evaluation index system of voltage quality treatment scheme,covering voltage quality improvement,the effect of reducing line loss,investment and investment efficiency.For the typical lines,simulate and evaluate the effect of voltage quality governance scheme,put forward the suggestions of voltage quality governance from the perspective of multiple.The clustering analysis method based on voltage quality provides some certain guidance for related planning management of voltage quality.The research on governance scheme evaluation of medium voltage distribution network lines help to quantitate the characteristics and effect of each scheme from the perspective of multiple.Provide effective guidance and scientific basis to the choice of voltage quality governance scheme.