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热力发电  2013 

330mw循环流化床机组模拟量控制系统优化

, PP. 107-111

Keywords: 330mw机组,cfb锅炉,模拟量控制,机组协调控制,物料平衡,床温,床压,主蒸汽压力

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Abstract:

循环流化床(cfb)锅炉具有良好的煤种适应性和变负荷能力,但其热惯性和迟滞性大,参数间耦合性强,使机组难以投入自动控制功能。为此,以哈尔滨锅炉厂有限责任公司生产的330mwcfb机组为控制对象,在保证其运行过程中物料、热量及机、炉间能量平衡等的基础上,优化主要模拟量控制系统。该控制系统优化后,提高了燃料量变化对主蒸汽压力偏差的响应速度,克服了主蒸汽压力、床温、床压的强耦合性、大惯性、非线性,平衡了双支腿形双布风板结构cfb锅炉的温度和床压。

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