摘要
阐述了燃气加热炉的燃烧机理,并对加热炉燃烧控制系统中采用的常规双交叉限幅控制进行了分析,针对其在实际生产应用中当系统负荷发生变化时不能保证空气和燃气的最佳配比的问题和系统响应速度慢的问题,提出根据系统负荷变化及响应对双交叉限幅模型中的偏置量取值进行实时修正的变偏置双交叉限幅控制。仿真结果表明,当系统负荷变化时采用变偏置双交叉限幅控制提高了系统响应速度,保证了燃气和空气的最佳配比,兼顾了系统的经济性。
Described was the combustion mechanism of a fuel gas heating furnace and analyzed was the conventional dual-crossed limited amplitude control adopted by the combustion and control system of the furnace.In the light of such problems in the practical production and applications as incapable of guaranteeing the optimum air and fuel gas ratio and slow in the response speed of the system during its load change,the authors proposed a variable bias dual-crossed limited amplitude control,of which the value taken as...
出处
《热能动力工程》
CAS
CSCD
北大核心
2010年第5期543-546,578,共5页
Journal of Engineering for Thermal Energy and Power
关键词
燃气加热炉
空燃比
燃烧控制
变偏置
双交叉限幅
fuel gas heating furnace
air/fuel ratio
combustion control
variable bias
dual-crossed limited amplitude
