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基于约束史密斯广义预测控制的水泥分解炉温度控制方法
Alternative TitleCement decomposing furnace temperature control method based on constraint smith GPC
王宏; 王卓; 张彦武; 苑明哲; 王天然; 吴星刚
Department工业信息学研究室
Rights Holder中国科学院沈阳自动化研究所
Patent Agent沈阳科苑专利商标代理有限公司 21002
Country中国
Subtype发明授权
Status有权
Abstract本发明涉及一种基于约束史密斯广义预测控制的水泥分解炉温度控制方法,包括:变量选取:选取煤粉流量为控制变量,生流流量为前馈变量,分解炉温度为被控变量;模型辨识:基于最小二乘法和滞后时间估计法相结合的模型辨识器,得到脉冲传递函数模型;优化计算:预测未来的输出状态,并设定输出值的参考轨迹w;应用二次型性能指标的控制器进行滚动优化,计算当前时刻的控制增量Δu,加得到控制动作值u;约束处理:对控制变量和被控变量分别进行约束限幅处理;前馈补偿:利用动态补偿原理计算当前时刻t应加于系统的前馈控制动作值ud。本发明方法辨识过程简单,可调参数少,跟踪性能好,鲁棒性强,有效抑制生料流量波动带来的扰动影响;防止系统变量发生跳变。
Other AbstractThe invention relates to a cement decomposing furnace temperature control method based on constraint smith GPC, which includes variable selection, model recognition, optimizing computation, constraint processing and feedforward compensation the variable selection includes that: coal powder flow is selected as a control variable, raw flow is selected as the feedforward variable and the decomposing furnace temperature is selected as the controlled variable the model recognition includes that: the model recognizer based on least square method and retardation time estimation time is adopted to obtain a pulse transfer function model the optimizing computation includes that: the future output state is predicated and the reference track w of the output value is also set a secondary performance index controller is adopted for the rolling optimization, the control increment Delta u of the current time is computed to obtain control action value u through addition the constraint processing includes that: the control variable and controlled variable are respectively performed with constraint amplitude limiting processing the feedforward compensation includes that: the dynamic compensation principle is utilized to compute the current time t added to the feedforward control action value ud. The invention has simple recognition process, less adjustable parameters, good tracking performance, strong robustness, effectively refrains the disturbance influence caused by raw material flow and prevents saltus step of the system variable.
PCT Attributes
Application Date2008-12-05
2010-06-23
Date Available2011-12-21
Application NumberCN200810229334.0
Open (Notice) NumberCN101751051B
Language中文
Contribution Rank1
Document Type专利
Identifierhttp://ir.sia.cn/handle/173321/14235
Collection工业信息学研究室
Affiliation中国科学院沈阳自动化研究所
Recommended Citation
GB/T 7714
王宏,王卓,张彦武,等. 基于约束史密斯广义预测控制的水泥分解炉温度控制方法[P]. 2010-06-23.
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