Research On Design Technology Of Advanced Compressed Air Energy Storage System

In recent years,with the large-scale expansion of renewable energy power generation industry,energy storage technology has become an important support to regulate the stability of renewable energy.In many energy storage technologies,compressed air energy storage(CAES)is an energy storage system based on gas turbine technology.The traditional compressed air energy storage system need to add fuel to increase the overall efficiency of the system,and the traditional compressed air energy storage system for fuel combustion emissions of greenhouse gases,not friendly to the environment,so the advanced compressed air energy storage(A-CAES)system is introduced particularly important.Firstly,the working principle,function characteristics and application status of compressed air energy storage technology are introduced.The technical characteristics of existing compressed air energy storage system are described in detail,and different types of compressed air energy storage system are compared.The development trend of compressed air energy storage technology is pointed out.A design idea of advanced compressed air energy storage system based on supply side demand is proposed.According to the two methods of constant inlet temperature and constant heat exchanger efficiency,the design and calculation are carried out.For each method,eight different configuration schemes are built.After comparing the charge and discharge efficiency,the best design scheme is two stage compression two stage expansion scheme.The modeling and characteristic analysis of each component of the advanced compressed air energy storage system are designed.The non-afterburning compressed air energy storage system of 500kW was simulated.The correctness of the simulation method was verified.Through the energy analysis and sensitivity analysis of the system components,the key factors affecting the efficiency of the system are found.Finally,the 10MW advanced compressed air energy storage system is designed,and the different configuration schemes are compared.The optimal scheme is two-stage compression two-stage expansion scheme.According to the design method of 10MW advanced compressed air energy storage system,the software was developed based on C language.The software realizes the convenience of the design and calculation of the advanced compressed air energy storage system,and lays the foundation for the optimization of the system.