Research On Comprehensive Evaluation Of Smart Transmission And Distribution Grid Based On Grey Correlation Analysis And Combination Weighting Method

The smart grid is the new trend and complex scientific problems of the world today's electric power system reform development. With the construction of smart grid have been widely developed all over the world, comprehensive and scientifically appraising the development level of smart grid, timely discovering weaknesses and constraints of smart grid development, realizing the balanced development of technology and economic development, has the extremely important theory significance and practical significance for the correct guidance of smart grid planning, construction, operation and management. Based on inter-external experiences of smart grid evaluation theory and method, the paper established evaluation system of regional transmission and distribution grid intelligence level including the evaluation index system, index weight method and evaluation model according to the actual situation of the development of power system in china.Thoroughly discussed the theory about smart grid's connotation, the characteristics, advanced and target decomposition, the paper clarified the necessity of evaluation of the development level of smart grid; Based on the index construction principle and demand analysis, the paper constructed the evaluation system of regional transmission and distribution grid intelligence level from 4 aspects which are grid technology and equipment intelligent level, grid operation scheduling intelligent level, power system security and reliability level, power grid efficiency and economic level, in addition, explained and limited the specific meaning of index; To avoid the disadvantages of existing comprehensive evaluation method, this paper established the evaluation model of regional transmission and distribution grid based on DEMATEL-ANP-Anti-entropy and grey correlation analysis method; Collecting relevant data of 4 municipal power companies' smart grid construction operation under the South Hebei Province power grid, the empirical research on the construction of the evaluation system verified evaluation system of regional transmission and distribution grid intelligence level has a better scientific and applicability.