Research on Post Evaluation of Power Grid’s Technological Transformation Project Based on Combined Weighting and Matter-Element Extension Met hod

Characterized by large number, large transformation scope, different transformation purposes and various transformation contents, it’s difficult to evaluate the implementation effect of technological transformation project of power grid and analyze its transformation benefit. Based on the post evaluation theory, this paper puts forward the evaluation index system and evaluation method suitable for the technological transformation project of power grid, and sets up a post evaluation model based on the whole life cycle. 28 indicators are constructed for in-depth study from seven aspects: preliminary work, implementation preparation, implementation management, settlement and final account management, archives management, investment control and operational performance. In order to avoid the problem that the previous evaluation process was greatly influenced by the subjectivity of experts, the analytic hierarchy process and entropy weight method were combined to determine the index weight, and the matter-element extension model was used to carry out the post evaluation. Finally, comprehensive evaluation and analysis of the precision load cutting technological transformation project in Jiangsu province are carried out to verify the practicality and effectiveness of the model. The research results are helpful to guide the post evaluation work and improve the lean management level of the power grid’s technological transformation project.