Research On The Comprehensive Evaluation Method Of Distribution Network Planning Considering Micro-grid

Under the background of the current situation of the electric power system,the micro grid technology is an effective means to solve many problems encountered in the current power system.As an effective supplement for the existing power grid,micro-grid can effectively solve the problem of power shortage in the power grid while effectively exploring the distributed energy sources.Micro-grid will be an important part of distribution network in future.However,in the process of distribution network planning,there are a series of technical problems,such as how to evaluate the planning scheme,how to verify and quantify the degree of implementation and effect of the relevant measures in the planning program.And a systematic and comprehensive evaluation method for the distribution network planning scheme with micro-grid is lacked.Under this background and in view of the actual distribution network planning process problems,a comprehensive evaluation method of distribution network planning considering micro-grid is studied in this thesis.Firstly,the current research status of microgrid planning evaluation and distribution network evaluation is summarized.Secondly,the existing distribution network planning evaluation theory and the existing evaluation methods are studied.Furthermore,according to the characteristics of distribution network with micro-grid,the evaluation index system of distribution network planning considering micro-grid is established and a new method of distribution network planning based on entropy weight method and improved analytic hierarchy process(IAHP)is proposed.Finally,an example is given to illustrate the validity of the evaluation index system and the evaluation method presented in this thesis.