Influence Degree Research On Large-scale Consumption Of Wind Power To Smart Grid's Vulnerability

Coupled with the rapid development of the global economy,the disadvantages of environmental pollution and fossil energy are becoming more and more prominent.With the advantage of clean,sustainable,etc.,wind power generation become one of the main ways to solve these problems.As the most mature distributed energy resource in technology,installed wind power generation grow rapidly.However,large-scale wind power integration has great influence in the safe operation of the smart grid.Highly informatization,automation and interaction,smart grid becomes the development trend of power grid in the future.But it also faces treats in information systems,network security,electrical equipment,etc..So it 'is very important to research the influence about large-scale consumption of wind power to smart grid's vulnerability.This paper analysis the influence factors of grid vulnerability caused by the problems of large-scale consumption of wind power generation comprehensively and scientifically,and research on effect of wind power grid to the smart grid vulnerability.Firstly,introduces the basic theory about the smart grid,vulnerability.-and vulnerable source,to analysis theinfluence factors of the smart grid vulnerability theory basis.And introduce vulnerability research methods.Secondly,this paper analyzes the impact of large-scale wind power grid on the vulnerability of smart grid and finds the key sources of the vulnerability of power grid.Based on those analyses,we build the vulnerability index system of smart grid in fivedimensions,including environmental factors,equipment factors,safety management factors,technical factors and structural factors.Finally,using the comprehensive integration method based on maximum entropy principle to empowerment every factor system.While the credibility theory is applied on the vulnerability evaluation,and the assessment model is established.Comparing evaluation results to get the influence results.The result of this article provide a way to judge the influence of wind power on the smart grid vulnerability,offer a reference for energy development planning and other related departments,give a target for reduce the vulnerability of the smart grid.