配备碳捕集的电站系统变工况运行性能分析及优化  

Performance Analysis and Optimization of Carbon Capture-equipped Power Station System Under Variable Operating Conditions

作　　者：袁鑫 李·萨仁高娃 刘战 陈衡 徐钢[1] 王修彦[1] YUAN Xin;LI Sarengaowa;LIU Zhan;CHEN Heng;XU Gang;WANG Xiuyan(School of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学能源动力与机械工程学院,北京102206

出　　处：《动力工程学报》2025年第4期496-504,共9页Journal of Chinese Society of Power Engineering

基　　金：国家自然科学基金资助项目(52276006)。

摘　　要：为了得到合理的碳捕集电厂调峰方案并研究碳捕集电厂参与电网调节产生的经济和环境效益,对1台660 MW燃煤电厂进行碳捕集改造,对电厂各部分能量损失进行分析,得到机组的能量损失机理,分析了不同碳捕集率下机组的运行情况,并设计了碳捕集电厂的优化运行方案。在MATLAB软件中对西北某地区碳捕集电厂采用优化运行方案前后参与电网调节的情况进行模拟。结果表明:优化运行方案可以提升系统的新能源接纳能力,降低系统的弃风弃光量,其中风电机组的出力占比提升了4.82百分点,光伏机组的出力占比提升了1.62百分点,系统的弃风弃光量降低了30.57百分点;系统的度电成本降低了0.0153元/(kW·h),度电碳排放量升高了94.37 g/(kW·h)。To obtain a reasonable peak regulation scheme for carbon capture power plants and study the economic and environmental benefits generated by carbon capture power plants participating in grid regulation,a 660 MW coal-fired power plant was retrofitted with carbon capture.Energy loss of each part of the power plant was analyzed to obtain the energy loss mechanism of the unit.Operations of the unit under different carbon capture rates were analyzed,and the optimized operation scheme of the carbon capture power plant was designed.Operation simulation was carried out in MATLAB for a carbon capture power plant in certain northwest region of China before and after adopting the optimized operation scheme to participate in grid regulation.Results show that the optimized operation scheme can improve the new energy acceptance capacity of the system and reduce the amount of wind and light abandonment of the system.The proportion of the output of wind turbines and photovoltaic turbines is increased by 4.82%and 1.62%separately,and the amount of wind and light abandonment of the system is reduced by 30.57%.The electricity cost of the system is reduced by 0.0153 yuan/(kW·h),and the carbon emission is elevated by 94.37 g/(kW·h).

关 键 词：碳捕集电厂 风光火系统 优化运行方案 优化调度模型 

分 类 号：TK2[动力工程及工程热物理—动力机械及工程]