风能太阳能联合蓄能发电系统性能分析

Performance analysis on wind and solar power generation system combined with energy storage system

本文提出一种新型的风能太阳能联合蓄能发电系统,该发电系统将风力压缩空气蓄能技术和太阳能蓄热技术以及燃气-蒸汽联合循环发电技术相结合,通过风力机组直接驱动压缩机组压缩空气蓄能,利用太阳能集热装置对燃料进行加热,使用燃气轮机的排气作为蒸汽透平的热源,实现燃气-蒸汽联合循环。通过对风能太阳能联合蓄能发电系统热力分析和系统效益计算可知,该风能太阳能联合蓄能发电系统不仅提高了联合循环系统的效率,也可提供稳定的供电,经济效益、环境效益和社会效益较好。

A new kind of wind and solar power generation system combined with energy storage system was proposed in the paper, in which the technology of wind compressed air energy storage, the technology of solar heat storage and the technology of gas-steam combined cycle power generation were combined together. This system not only tries using wind turbines to drive the compressors directly and solar collectors to heat the fuel, but also tries taking the gas turbine exhaust as heat source of the steam turbine to realize gas-steam combined cycle. The thermodynamic analysis and system benefit calculation shows that, the efficiency of the above wind and solar power generation system will be improved and the power grid can get a stable power supply. A better economic, environmental and social benefit will be achieved.