| In 2018,Comrade Liu Jiayi,Secretary of Shandong Provincial Party Committee,requested that the new and old kinetic energy conversion work be carried out in the whole province.For the State Grid Shandong Electric Power Company,it is necessary to speed up the construction of Shandong Power Grid.However,with the two consecutive years of national reduction of large industrial electricity prices,power grid enterprises operating income has been greatly affected.Therefore,the State Grid Corporation demands its affiliated power enterprises to firmly take root the idea of living a tight life,reasonably control the speed of investment,guarantee the implementation of key tasks.This puts forward higher requirements for Shandong Electric Power Company of the State Grid to make accurate investment and reasonably prepare investment plans.The preliminary design budget estimate is the basis for the preparation of Shandong Electric Power Investment Plan of the State Grid.It is very important for enterprises to prepare investment plans rationally.Therefore,we need to find an economic evaluation system suitable for the preliminary design stage of power grid projects to meet the needs of comprehensive economic evaluation,thus reducing investment risks and playing a good supporting role in the preparation of reasonable investment plans of enterprises.Under this situation,this paper conducted the research on the D comprehensive economic evaluation method in the preliminary design stage of power transmission and transformation projects.First of all,this paper has thoroughly researched the domestic and foreign literatures,analyzed the current situation of economic evaluation of power transmission and transformation projects,concluded that it is necessary to conduct economic evaluation in the prelimmarydesignstage.Then,this paper selects a representative Guanlong 500kV transmission and transformation project as an example,it analyzes the present situation of engineering technology scheme and investment estimate.According to the characteristics of the construction of power transmission and transformation engineering,it calculates and analyzes the total cost and net cash flow of the project.After calculated,we thought Guanlong 500kV power transmission and transformation project has considerable investment income.The calculated data results can be used as the foundation for comprehensive economic evaluation of the project.Then,this article has carried on the financial appraisal and the sensitivity analysis to the project.Through the analysis,we thought this project has the good prospect,the financial appraisal index all achieves the profession benchlark request.Thirdly,this paper adopts the fuzzy comprehensive rating method to make a comprehensive economic evaluation of the project which is based on analytic hierarchy process and the evaluation method of principal component analysis.The results indicate that the comprehensive evaluation of the project is good and the comprehensive evaluation results are desirable.Then we made a comparison between the two methods,we found that the two evaluation methods are basically consistent,further more,the principal component analysis method is more convenient and the calculation process is much simpler than fuzzy comprehensive evaluation.In the initial design stage,the principal component analysis method is a more efficient evaluation method.Finally,it summarized the analysis of this paper and discussed the prospects of the research direction. |
PDF Full Text Request