| In the case of seriously wind abandoning,wind power development is in urgent need of transformation.How to use wind energy more efficiently,less costly and more flexibly is related to the future development trend of wind power.In recent years,energy storage system applied to wind power generation has been widely concerned about and has obtained a series of applications.Different applications of energy storage system makes the study of combined wind power generation system more challenging,the selection of energy storage system,the determination of energy storage capacity,and the joint of wind storage mode is related to the wind storage system's operation efficiency and economy,reasonable match of the wind power generation and energy storage system will effectively improve the domestic serious problems such as "abandoning wind" and "abandoning power",makes the research more significance.The rational optimization of energy storage capacity in the wind storage power system will greatly reduce the cost and improve the economy of the power system.This paper takes the large capacity of wind energy storage configuration as the research background,firstly analyze the commonly used energy storage system,focusing on compressed air energy storage system,and select large capacity,good economy and less polluting--Advanced adiabatic compressed air energy storage system(AA-CAES)at last.According to the real-time operation state of wind power and the working state of energy storage system,the combined operation strategy of wind storage system is worked out.Secondly,in the case of improve the forecast accuracy of wind power by the energy storage system,use Matlab to programming model,determine the permissible error range,and gives preliminary energy storage capacity allocation method.Based on the initial energy storage configuration,considering the energy storage system in the market environment is necessary to configure when meet economy,building energy storage configuration optimization model,makethe minimum total energy storage cost as the objective function,using Matlab genetic algorithm toolbox to optimize energy storage configuration,finally figure out the best energy storage capacity.In the end,the costs and benefits evaluation of the AA-CAES power station are conducted,recovery years is seeked and the sensitivity factor analysis is carried out to provide some reference for its commercial operation. |
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