燃煤发电机组与压缩空气储能耦合热力系统分析及调峰特性研究

Analysis of Coupling Thermal System and Study of Peak Shaving Characteristics of Coal-fired Generating Units and Compressed Air Energy Storage

随着新能源的发展,在役煤电机组调峰运行已成常态化,燃煤发电机组与压缩空气耦合既可以提升燃煤机组调峰能力,又可以提升负荷响应速率,提升电力系统灵活性,促进以新能源为主体的新型电力系统发展。研究燃煤发电机组与压缩空气耦合储释能过程热力系统优化配置,从热经济性角度定量分析储能过程中压缩机的驱动方式、释能过程中热源位置、耦合运行系统效率、调峰能力等。

With the development of new energy, the peak shaving operation of in-service coal-fired power units has become normalized. The coupling of coal-fired generating units and compressed air can not only improve the peak shaving capacity of coal-fired units, but also improve the load response rate and improve the flexibility of the power system, and promote the development of new power systems with new energy as the mainstay. The optimal configuration of thermal systems for energy storage and release processes in the coupling of coal-fired generating unit and compressed air is studied, and the driving mode of compressor in the energy storage process, the position of the heat source in the energy release process, the efficiency of the coupled operating system, and the peak shaving capacity are quantitatively analyzed from the perspective of thermal economy are quantitatively analyzed from the perspective of thermal economy.