Line Loss Analysis And Loss Reduction Measures Of Distribution Network In Jiujiang Area

With the development of social economy,people’s demand for electric energy in daily production and life is increasing day by day,which leads to the construction scale of distribution network is becoming larger and larger,and the structure is becoming more and more complex,and the loss generated by the distribution network itself is also increasing.How to effectively reduce the line loss of distribution network has become an urgent problem to be solved by current power supply enterprises.Firstly,this paper expounds the definition of line loss and line loss rate,establishes the mathematical model of line loss rate,and classifies the causes of line loss.This paper introduces several common calculation methods of line loss,sets up mathematical model of distribution network line loss according to the principle of each calculation method,and then USES the equivalent resistance method to calculate the line loss of jiujiang city distribution network theoretically.Secondly,the overall planning of jiujiang distribution network is roughly introduced,and the equivalent impedance,the equivalent impedance and the line loss rate of wangli distribution transformer line,a typical 10kV line in jiujiang city,are calculated by using the equivalent resistance method.Then use of jiujiang power supply enterprise line loss calculation software,jiujiang typical days cut in distribution network line loss and different voltage grade distribution network line loss calculation of the theoretical line loss.suggestions by theoretical calculation result shows that with the increase of power supply,its theory is also increasing line loss.suggestions,the entire network,the fastest growth line loss.suggestions 35 kv and 10 kv distribution network line loss.suggestions slower growth,the 380 v power line loss.suggestions growth is minimal.Finally,the commonly used technical loss reduction methods and management loss reduction methods are generally summarized and summarized,and the causes of the line loss problem of distribution network in jiujiang city are analyzed through the theoretical line loss calculation results of jiujiang city in the last chapter,which are mainly technical line loss problems and management line loss problems.In view of the actual line loss of jiujiang distribution network,the technical and management loss reduction methods in line with the actual situation of jiujiang distribution network were developed,which effectively reduced the line loss of jiujiang distribution network,and provided theoretical and factual basis for the upgrading and reconstruction of jiujiang distribution network.