热力发电2023，Vol.52Issue(12)：20-28,9.DOI:10.19666/j.rlfd.202303026
燃煤机组灵活运行性能评价及成本分析
Flexible operation performance evaluation and cost analysis of coal-fired units
摘要
Abstract
Under the strategic goal of"carbon peaking and carbon neutrality",the penetration rate of new energy sources is increasing,and coal power is gradually transforming into a flexibly adjustable power supply.While the flexible operation of coal-fired generating units will lead to energy efficiency losses and additional pollutant emissions,which have a certain degree of impact on the cost of power generation and are not conducive to the further exploitation of coal power flexibility resources.In this paper,a method for grading the flexible operating performance of coal-fired units is constructed.By calculating the performance indicators to assess the flexibility performance of coal-fired units under specific operating conditions,the relationship between the unit coal consumption rate and the generation of some air pollutants that affect the cost of power generation and the operational flexibility is investigated.Meanwhile,the kilowatt-hour cost of coal-fired power plants at the second level is estimated.Finally,second-scale operating data collected from a 330 MW unit are used to evaluate the impact of coal-fired unit flexibility on the cost of electricity generation,and build least squares support vector machine(LSSVM)model to realize the prediction of unit power cost under different flexibility levels.The research results indicate that prediction error in specific conditions can be reduced by 50%compared with that in full conditions.关键词
燃煤机组/灵活性发电/发电煤耗率/度电成本Key words
coal-fired unit/flexible power generation/coal consumption rate for power genation/cost of kilowatt-hour electricity引用本文复制引用
吕游,吴斌,秦瑞钧,李军,翁明楷..燃煤机组灵活运行性能评价及成本分析[J].热力发电,2023,52(12):20-28,9.基金项目
国家电网有限公司总部管理科技项目(52060021N00P) Science and Technology Project of State Grid Corporation of China(52060021N00P) （52060021N00P）
