【摘要】 绝热压缩空气储能技术（A-CAES）可用于可再生能源电力的调峰、调频，是实现“双碳”目标的有效手段。为研究级数、上端差、节流阀后压力等关键参数对系统热力学效率与经济性的影响，实现最低度电成本，构建了基于MATLAB的A-CAES模型，并进行计算。结果表明：在模拟工况范围内，效率随级数、上端差的增加而降低，随节流阀后压力的增加而增加，效率最高可达70%以上；二级压缩、二级膨胀的度电成本最低，为0.0413～0.045 0美元/(kW·h)；度电成本随节流阀后压力的增大而减小；当上端差大于2.5 K时，度电成本随上端差的增大而增大。因此，A-CAES可实现高效、低成本储能。更多还原

【Abstract】 Adiabatic compressed air energy storage technology(A-CAES) can be used for peak shaving and frequency regulation of renewable energy electricity, which is an effective means to achieve the goal of “Dual Carbon”. In order to study the influence of key parameters such as the number of stages, hot side temperature difference, and throttling valve pressure on thermodynamic efficiency and economy of the system, and achieve the lowest levelized cost of energy(LCOE), an A-CAES model based on MATLAB is constructed for calculation.The results show that, within the range of simulated working conditions, the efficiency decreases with the increase of the number of stages and the hot side temperature difference, while increases with the throttling valve pressure,and the highest efficiency can reach over 70%. The LCOE of the secondary compression and secondary expansion is the lowest, which is 0.041 3～0.045 0 dollars/(kW·h). The LCOE decreases with the increasing throttling valve pressure. When the hot side temperature difference is greater than 2.5 K, the LCOE increases with the hot side temperature difference. Therefore, the A-CAES can realize efficient and low-cost energy storage.更多还原