基于不确定性补偿的湿法脱硫系统二氧化硫超低排放控制Ultra-low sulfur dioxide emission control of wet desulphurization system based on uncertainty compensation
詹卓轩,赵刚,苏志刚
摘要(Abstract):
为了吸纳新能源,燃煤机组需要灵活运行,而由此引起的多变工作环境会导致湿法脱硫过程产生显著的非线性和不确定性,同时脱硫过程的时延特性也会增加控制难度。为了实现脱硫过程更快速灵敏的控制,提出一种基于变频改造的脱硫控制策略,并基于该策略,通过现场试验获得动态特性模型。同时,为了良好地处理不确定性,实现控制过程中的不确定性补偿,提出一种针对时延对象的更新高斯过程模型预测控制方法,并通过参数分析与仿真试验证明了该方法的可行性。最后,通过现场实际应用,验证了所提控制策略与控制方法的有效性。
关键词(KeyWords): 湿法脱硫;变频改造;不确定性补偿;高斯过程模型;模型预测控制
基金项目(Foundation): 国家自然科学基金项目(52076037)~~
作者(Author): 詹卓轩,赵刚,苏志刚
DOI: 10.19666/j.rlfd.202304102
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