基于电碳协同的胺法脱碳火电机组灵活控制策略Electricity-carbon coupling modeling and coordinated control strategy for coal-fired power units with amine decarbonization
孔德安,赖延春,朱清,王晓宇,王玮
摘要(Abstract):
火电机组采用胺法脱碳时存在电碳耦合,为提升脱碳机组的负荷灵活跟踪性能,提出了一种基于电碳协调的变负荷控制策略。基于已有数据,以辨识方式建立了汽包炉火电机组的电碳协调控制系统模型;分析了再沸器负荷对发电负荷和碳捕集率的响应时间尺度,并基于此设计了基于脱碳抽汽与燃料量双重控制的发电负荷控制回路;进一步,为克服长时间尺度对碳捕集率的影响,重构了全程再沸器负荷变化瞬态量,提出了基于电碳协同的发电负荷灵活控制方法。以某300 MW机组为例进行了仿真测试,结果表明:相较传统协调控制策略,所提控制策略可在保证机组热负荷和碳捕集率性能指标的同时,使机组的变负荷控制速率及AGC性能指标平均提升1倍以上。
关键词(KeyWords): 碳捕集电厂;胺法脱碳;电碳协同;再沸器负荷;协调控制;灵活控制
基金项目(Foundation):
作者(Author): 孔德安,赖延春,朱清,王晓宇,王玮
DOI: 10.19666/j.rlfd.202501011
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