Research On Comprehensive Assessment Index System Of Power Grid Loss Reduction Schemes Under Coordination Control Of Load-Grid-Source

Nowadays,the interconnection capacity of large-scale wind power base has been increasing rapidly,since long distance of large-scale wind power transmissions and characteristics of its randomness and volatility,this phenomenon resulted in problems in new-energy consumption.According to this situation,coordination control schemes of load-grid-source involves three aspects of power grid、power source、high-energy load,which covers a wide range and correlates badly,and the original evaluation system index is quite single,all of these factors brings a host of problems to the comprehensive assessment of scheduling mode of operation.Therefore,research on power grid loss reduction evaluation system of coordination control schemes of load-grid-source has important theoretical and practical significance.First of all,this paper subsequently elaborates the research status of power grid loss reduction comprehensive assessment system under coordination control schemes of load-grid-source.This paper researched the comprehensive influence of coordination control schemes of load-grid-source to the power grid loss reduction,and put forward four assessment angles such as power grid loss,high-energy load,reactive power compensation equipment and power supply,according to these,this paper briefly established power grid loss reduction comprehensive assessment system under coordination control schemes of load-grid-source.Then,this paper analyzed power grid loss reduction comprehensive assessment system optimization method based on information contribution-principal component analysis.Information contribution can be used to reflect information contribution degree of the index to the original index set,and the ratio of one index’s information contribution degree to the all index set’ information contribution degree sum can serves as the index’s weight,thus reaching both targets of index system optimization and empowerment.Finally,Gansu grid is taken as an example to prove the feasibility and effectiveness of the proposed information contribution-principal component analysis.by power grid loss reduction evaluation system based on this method’s application to the power grid loss reduction comprehensive assessment of coordination control schemes of load-grid-source.