Economic Assessment Of Typical 10kV Distribution Network Structure

Smart grid construction in China is advancing continuously,so the requirements for distribution network economic and reliability are also increasing.Whether from the view of national level or the State Grid Corporation,the urban distribution network construction has been put on a great priority.Relative to developed countries,China's distribution network grid structure is weak,relatively poor operation and management level and backward economic index.In-depth study of typical current network structure to master their reliability level and control over their use of characteristics has great significance for the distribution network rational planning,structural improvements and improvement of power grid operation economic.In this article,typical grid structures of the distribution network were analyzed from the perspective of economic assessment.First,introduce the calculation algorithm flow and the corresponding computational model of full life cycle algorithm by studying the economic assessment methods.Then selecting nine typical grid structures from urban distribution network,assess these typical grid structures using established evaluation model of full life cycle.Economic assessment of typical grid structures is conducting from different load density,load rate and considering equipment life cycle three aspects.Conclusions are given based on the assessment results,providing theory and data support for planning and improving the distribution network.At the end of the article,Qingdao and Nanjing city distribution network economy evaluation calculation are made and the conclusion is given out.