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| 摘要: |
| 采用PID控制难以实现工业锅炉燃烧有效控制。在分析工业锅炉燃烧过程的动态特性的基础上提出新的控制策略。针对蒸汽压力控制存在的有自衡过程与无自衡过程,分别采用三阶最佳工程设计方法设计多个控制器,根据蒸汽流量出现的扰动,以及给煤量的变化情况,通过切换选择不同的控制器,从而实现蒸汽压力的有效控制。通过测量烟气含氧量和炉膛温度来准确地判断燃烧情况,同时根据热效率与风/煤比之间的特性,利用专家经验自动寻找最佳风/煤比,从而保证完全燃烧。实际运行效果表明该控制策略适用于一般工业锅炉控制。 |
| 关键词: 工业锅炉 燃烧控制 专家系统 控制策略 多模型切换 寻优 |
| DOI： |
| 分类号:TP273 |
| 基金项目:南通市应用基础研究项目(K2008007)~~ |
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| Combustion control strategy for industrial boilers |
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ZHANG Peijian SHI Guangren
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| Abstract: |
| It is difficult to effectively control the combustion process of industrial boiler by PID,for which a new control strategy is presented based on the analysis of its dynamic characteristics.For the vapor pressure control has both automatic and non-automatic balancing processes,several controllers are designed with the third-order optimal engineering method,one of which is selected according to the disturbance of vapor flow and the variation of coal feeding to realize the effective control of vapor pressure.T... |
| Key words: industrial boiler combustion control expert system control strategy multi-model switching optimization |
