中国电机工程学报2023，Vol.43Issue(23)：9171-9182,12.DOI:10.13334/j.0258-8013.pcsee.222819
耦合火电机组的新型压缩空气储能系统技术经济性评估研究
Research on Techno-economic Evaluation of New Type Compressed Air Energy Storage Coupled With Thermal Power Unit
李佳佳 1李兴朔 1魏凡超 1颜培刚 1刘金福 1于达仁1
作者信息
- 1. 哈尔滨工业大学能源科学与工程学院,黑龙江省哈尔滨市 150001
- 折叠
摘要
Abstract
With the promotion of the carbon peak and carbon neutrality goals,the demand for peak shaving and frequency modulation in the grid is rapidly increasing.To better play the role of compressed air energy storage(CAES),this paper proposes a trigenerative CAES system coupled with a thermal power plant.Based on the established thermodynamic models and the techno-economic analysis models,the system thermal performance as well as economics performance are evaluated,and the influences of key parameters on the economic indicators are analyzed to provide guidance for future practical engineering application.The results show that the new system efficiency is enhanced by 16.21％and 5.39 tons of coal are saved for one cycle under a typical condition.Besides,the dynamic payback period is shortened by 11.8 years,and the internal rate of return is increased by 5.72％.These results demonstrate that the proposed new CAES system has better performance in both thermo-economy and techno-economy.The parametric sensitivity study indicates that the system is greatly affected by the number of annual cycles and the peak shaving subsidy range.When the number of annual cycles is less than 190,the peak shaving subsidy boundary is less than 35.5％load rate or the electricity subsidy is less than 0.14yuan/kW·h,the coupling system will not be investable.This study provides a new development idea for the large-scale commercial promotion and application of CAES,and also provide reference and basis for investors.关键词
压缩空气储能/火电机组/热力循环/技术经济性/投资边界分析Key words
compressed air energy storage/thermal power unit/thermal cycle/techno-economy/investment boundary analysis分类
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李佳佳,李兴朔,魏凡超,颜培刚,刘金福,于达仁..耦合火电机组的新型压缩空气储能系统技术经济性评估研究[J].中国电机工程学报,2023,43(23):9171-9182,12.
