| 热轧恒压供水系统智能Smith预估多模控制策略研究 |
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| 引用本文： | 张海霞,肖轶.热轧恒压供水系统智能Smith预估多模控制策略研究[J].机械设计与制造,2011(10). |
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| 作者姓名： | 张海霞 肖轶 |
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| 作者单位： | 1. 南通纺织职业技术学院机电工程系,南通,226007
2. 安徽工业大学电气信息学院,马鞍山,243002 |
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| 基金项目： | 江苏省自然科学基金(SBK200920379); 南通市应用研究计划(K2008037) |
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| 摘 要： | 针对热轧恒压供水系统的非线性和时滞性特点,提出了一种智能Smith预估多模控制策略。当供水压力差绝对值大于等于设定值的20%时采用了PD控制,在设定值的10%到20%范围内采用PID控制,小于设定值的10%时采用了模糊自适应PID控制,通过模糊规则在线调整PID控制器的三个参数,并引入Smith预估器对供水系统的纯滞后现象进行补偿。基于推导出的典型恒压供水模型,利用MATLAB软件对常规Smith-PID、Smith-模糊PID、智能Smith预估多模控制器进行仿真分析。仿真结果及现场应用表明:相比常规的PID-Smith和Smith-模糊PID控制器,智能Smith预估多模控制器具有鲁棒性强、动态响应快及稳态精度高的优点。
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| 关 键 词： | 热轧 恒压供水 模糊PID控制 Smith预估器 多模型 |
Algorithmic design of intelligent Smith prediction multi-model controller for constant-presure water supply in hot mill |
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| ZHANG Hai-xia,XIAO Yi.Algorithmic design of intelligent Smith prediction multi-model controller for constant-presure water supply in hot mill[J].Machinery Design & Manufacture,2011(10). |
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| Authors: | ZHANG Hai-xia XIAO Yi |
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| Affiliation: | ZHANG Hai-xia1,XIAO Yi2(1School of Mechanical and Electronics,Nantong Textile Vocational Technology College,Nantong 226007,China)(2School of Electrical Engineering & Information,Anhui University of Technology,Maanshan 243002,China) |
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| Abstract: | With regard to features of nonlinear and time-delay in constant-presure water supply system in hot mill,a new intelligent smith prediction multi-model controller is developed in this paper.When the absolute value of pressure error exceeds or equal to 20% of the setting input,PD control may be adopted,and PID control may be adopted when the value is in the range of 10% to 20% of the setting value.When the error absolute value is less than 10% of the setting input,fuzzy adaptive PID control may be adopted,in ... |
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| Keywords: | Hot mill Constant pressure water supply Fuzzy PID control Smith predictor Multi-model |
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