模糊—专家控制策略在循环流化床机组中的应用.pdfVIP

内蒙古电力技术 I 飞i l EH VI 仆气COI.I \ El. HTHlC PO\\下R 2012 作精川普纳1 期 93 棋糊一专家栓刽策略在循坏优化尿札组中的雇用 苏瑞E ，殷建华2 ，薛瑞: (1.内蒙古工业大学，内蒙古 呼和浩特 01∞80;2. 内蒙古电力科学研究院，内蒙古 呼和浩特Ol(施应0) 摘要:针对循环流化床锅炉发生床料翻床事故的原因及常规翻床处理方法的不足，提出 模糊一专家控制策略，即通过控制一次风支管风门和利用一次风机液力藕合器调节两侧床层 风压，实现两侧床料的平衡。当被调量偏差的绝对值超出闽值则系统启动基于规则的专家控 制功能;当偏差的绝对值小于闽值时，系统将退出专家控制而激活模糊控制功能。控制策略 在3∞MW循环流化床机组上应用之后，有效避免了翻床事故的发生。 关键词:循环流化床机组;翻床;模糊控制策略;专家拉制策略;床料失稳;一次风 文献标志码:B 文章编号: 1008 - 6218(2012)01- ∞93-03 Application of Fuzzy-Expert Control Strategy in Circulating Fluidized ßed Power Unit 2 Su Rui , Yin Jianhua , Xue Rui (I.Inner Mongolia University of Technology, Inner Mongolia Hohhot 01∞80; 2.1nner Mongolia Electric Power Science Research Institute, Inner Mongolia Hohhot 01∞20) Abstract: Owing to cause of bed overturn accident with bed material in circulating fluidized bed (CFB) boiler and deficiency on common treatrnent ωroutine bed overturn, fuzzy-experts control strategy has been put forward, that is, balancing bed rnaterials of two sides can be realized by controlling prirnary air manifold branch gate and adjusting bed pressure of two sides, by using hydrodynamic coupling for primary air. When absolute value of adjusting volurne deviation exceeds valve value , systern startup will be on rules of expert control; when absolute value of adjusting volurne deviation less than valve value , systern 时II withdraw expert control , and activate fuzzy control. Mter applicatio