不同输出方式下2种AA-CAES系统性能的对比研究

为获得先进绝热压缩空气储能（AA-CAES）系统较高的效率与较好的经济性,设计2种输出策略。建立AA-CAES模型与和太阳能相结合的复合储能系统模型,通过数值模拟,比较2个系统在不同输出方式下的热力学特性与经济性能,并研究了基本参数的敏感性问题。结果表明：原系统在采用方案1时循环效率最高,复合系统在采用方案2时年利润率最大。储能功率的提高对2个系统的循环效率与年利润率有积极影响,而释能功率的提高对其有消极影响。当储释能时间间隔延长时,不同方案下2个系统的循环效率与年利润率均降低。

COMPARATIVE STUDY ON PERFORMANCE OF TWO AA-CAESSYSTEMS UNDER DIFFERENT OUTPUT MODES

In order to obtain higher efficiency and better economy of AA-CAES system, two output schemes are proposed. The model of the AA-CAES system and the composite energy storage system combined with solar energy are established. Through numerical simulation, the thermodynamic and economic characteristics of the two systems under different output modes are compared, and the sensitivity of the basic parameters are studied. Consequences can be indicated that the cycle efficiency of the original system is the highest when the scheme one is adopted, and the annual profit margin of the composite system is the biggest when the scheme two is adopted. The increase of energy storage power has a positive effect on the cycle efficiency and annual profit margin of the two systems, while the increase of energy release power has a negative effect on them.When the energy storage and release time interval extends, the cycle efficiency and annual profit margin of the two systems under different schemes all decrease.