Wind Power Generation System Cost/Power Reliability Assessment Considering Advanced Adiabatic Compressed Air Energy Storage

Affected by environmental and energy issues,various clean energy sources are continuously developed and utilized.Wind power generation has been vigorously developed.However,while the scale of wind power continues to expand,the problem of “abandoning the wind” is still facing severe challenges,and the randomness and intermittent nature of wind power will also affect the power system.The development of large-scale energy storage technology has effectively solved these problems,especially The advanced adiabatic compressed air energy storage(AA-CAES)technology has become the best choice for balancing the randomness of wind power generation and improving the utilization of wind energy with its characteristics of large capacity,low cost and high efficiency.For wind power generation(WPG)systems that consider advanced compressed air energy storage,the larger the system capacity,the higher the cost,the higher the reliability of the power supply,and the lower the cost of power outages.Therefore,considering the economics and the power supply reliability,the capacity of WPG and CAES are optimized in this paper.Firstly,several new compressed air energy storage systems and other energy coupling systems such as CAES and diesel engines are introduced.The thermodynamic modeling of AA-CAES system is analyzed,including compression,heat exchange,heat storage,heat release and expansion stages.Secondly,the randomness of wind power generation and the operating characteristics of AA-CAES power station are considered,the compression/expansion model of AA-CAES and wind power generation system is established.Monte Carlo simulation method is employed to simulate wind power generation.The compression/expansion power of the AA-CAES is optimized by dynamic programming method.The optimization aim is to minimize the fluctuation of the net load of the system.Finally,the customer is employed as a market element,the customer interruption cost is calculated,the cost/reliability assessment model is established.The proposed planning method is simulated and the fixed cost and the power supply reliability costinfluenced by the capacity of WPG and CAES are analyzed.The results show that when the capacity of WPG and CAES changes,there is an optimal WPG,CAES to minimize the total cost of the system.