| 基于多模型切换的过热汽温广义预测控制 |
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| 引用本文： | 张云广,沈炯,李益国.基于多模型切换的过热汽温广义预测控制[J].华东电力,2009,37(1). |
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| 作者姓名： | 张云广 沈炯 李益国 |
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| 作者单位： | 东南大学,能源与环境学院,江苏,南京,210096 |
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| 基金项目： | 教育部科学技术研究重点项目 |
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| 摘 要： | 火电厂过热汽温对象具有时滞、惯性和参数时变的特性.固定参数常规PID控制器在对象特性发生变化后,控制品质会有所下降.基于多模型切换的过热汽温广义预测控制策略,对若干典型工况点下的固定模型设计子控制器,当系统工况发生变化后,通过有效的切换策略及时准确地切换到最适控制器.提出一种新的平滑切换方法,可有效抑制切换时对象出现的大幅扰动现象.仿真结果验证了该控制策略的有效性.
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| 关 键 词： | 多模型 广义预测控制 平滑切换 |
Multi-model switching based GPC and its application to superheated steam temperature systems |
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| ZHANG Yun-guang,SHEN Jiong,LI Yi-guo.Multi-model switching based GPC and its application to superheated steam temperature systems[J].East China Electric Power,2009,37(1). |
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| Authors: | ZHANG Yun-guang SHEN Jiong LI Yi-guo |
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| Affiliation: | School of Energy and Environment;Southeast Univ.;Nanjing 210096;China |
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| Abstract: | The superheated steam temperature system in the power plant is a typical time delay,strong inertial and time varying process.Due to these characteristics,the performance of traditional fixed-parameter PID controller tends to deteriorate when the properties of the process change.A new multi-model switching based generalized predictive control(GPC) strategy was presented.A set of linear models was developed according to different loads,and the controllers associated with each model were designed.By an effecti... |
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| Keywords: | multi-model GPC smooth switching |
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