热力发电2026，Vol.55Issue(2)：95-107,13.DOI:10.19666/j.rlfd.202506132
660 MW燃煤机组与AA-CAES耦合系统热解耦及调峰研究
Thermodynamic decoupling and peak-shaving research on a 660 MW coal-fired unit coupled with AA-CAES system
摘要
Abstract
The large-scale integration of renewable energy poses significant challenges to the peak-shaving capacity of coal-fired units.To enhance operational flexibility and address energy flow conflicts in typical coal-fired systems coupled with compressed air energy storage systems during peak shaving,this study investigates a 660 MW coal-fired unit using EBSILON software.Three energy storage schemes and two energy release schemes are proposed and evaluated through thermo-economic analysis,focusing on thermal-time decoupling capability,peak-shaving paradox elimination,and system performance.The results show that during energy storage,the scheme utilizing intermediate-pressure cylinder exhaust for thermal oil heating achieves the highest thermal storage gain ratio(1.370)and the lowest heat rate(8 814.976 kJ/(kW·h)).During energy release,the scheme absorbing heat from No.3 high-pressure heater drain outlet yields the minimum heat rate(7 547.945 kJ/(kW·h)).After 8 hours of operation,the system retains 38.503 MW·h of utilizable thermal energy and reduces the peak-shaving paradox index to-0.041.Parameter optimization improves the round-trip efficiency of the compressed air energy storage system by 2.702 percentage points and increases the unit's peak-shaving depth by 2.481%.This study provides a viable solution for synergistic optimization of coal-fired units and energy storage systems.关键词
压缩空气储能系统/燃煤机组/耦合系统/热解耦/深度调峰/调峰悖论/往返效率Key words
compressed air energy storage system/coal-fired unit/coupling system/thermal decoupling/dееp pеak shaving/peak shaving paradox/round-trip efficiency引用本文复制引用
徐传坤,张杰,马行驰,李磊..660 MW燃煤机组与AA-CAES耦合系统热解耦及调峰研究[J].热力发电,2026,55(2):95-107,13.基金项目
中国电力工程顾问集团重大科技专项(DG-J02-2022) Key Science and Technology Program of China Power Engineering Consulting Group(DG-J02-2022) （DG-J02-2022）
