非补燃液态压缩空气储能系统性能模拟研究
摘要：目的 压缩空气储能是大容量、长周期、低成本、高效率的一种储能技术，由于气态压缩空气储能受制于储气室的苛刻要求，无法多场景、规模化推广应用，因此提出一种非补燃液态压缩空气储能系统。 方法 构建了系统理论计算模型，对系统内压缩机级间温度、压缩机级数、透平入口温度等关键参数进行了敏感性分析，同时与非补燃气态压缩空气储能系统进行了对比。 结果 压缩机级间温度过低或过高都会制约系统电-电转化效率的提升；压缩机级数与压缩机耗功呈现正相关趋势，与透平发电功率呈现负相关趋势；在入口压力相同的条件下，透平入口温度越高，发电功率越大，电-电转化效率越高；与非补燃气态储能系统相比，非补燃液态储能密度增加了3.7倍，储气室容积缩小了9/10。 结论 非补燃液态压缩空气储能系统有效解决了储气室的难题，使压缩空气储能技术能够在多场景、规模化推广应用，对火电机组深度调峰及电网大容量储能具有重要意义。
Abstract:Objectives Compressed air energy storage is a type of energy storage technology with large capacity, long cycle, low cost and high efficiency. Due to the strict requirements of gas storage chambers, gaseous compressed air energy storage cannot be widely promoted and applied in multiple scenarios and on a large scale. Therefore, a non-supplementary combustion liquid compressed air energy storage system was proposed. Methods A theoretical calculation model was constructed to conduct sensitivity analysis on key parameters such as compressor interstage temperature, number of compressor stages, and turbine inlet temperature within the system. The results were compared with those of a non-supplementary combustion gaseous compressed air energy storage system. Results Too low or too high interstage temperature in compressors will restrict the improvement of electric-electric conversion efficiency of the system. The number of compressor stages is positively correlated with compressor power consumption, and negatively correlated with the turbine power generation. Under the same inlet pressure, the higher the inlet air temperature of the turbine is, the larger the power generation is, and the higher the electric-electric conversion efficiency is. Compared with the non-supplementary combustion gaseous energy storage system, the density of non-supplementary combustion liquid energy storage system is increased by 3.7 times, and the volume of the storage chamber is decreased by 9/10. Conclusions The non-supplementary combustion liquid compressed air energy storage system effectively solves the problem of gas storage chambers, enabling compressed air energy storage technology to be promoted and applied in multiple scenarios and on a large scale. It is of great significance for deep peak shaving of thermal power units and large-scale energy storage in power grids.
标题：非补燃液态压缩空气储能系统性能模拟研究
title:System Simulation Study on Performance of Non-Supplementary Combustion Liquid Compressed Air Energy Storage System
作者：姬海民, 薛磊, 周方盛, 王电, 陈诚, 李靖, 刘辉, 薛宁, 张知翔, 徐党旗
authors:Haimin JI, Lei XUE, Fangsheng ZHOU, Dian WANG, Cheng CHEN, Jing LI, Hui LIU, Ning XUE, Zhixiang ZHANG, Dangqi XU
关键词：储能,调峰,非补燃,气态压缩空气储能,液态压缩空气储能,
keywords:energy storage,peak shaving,non-supplementary combustion,gaseous compressed air energy storage,liquid compressed air energy storage,
发表日期：2024-10-31
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