引用本文:李韬,陈增强,张纪峰>.比例积分型广义预测控制系统的稳定性分析[J].控制理论与应用,2007,24(1):19~24.[点击复制]
LI Tao ,CHEN Zeng-qiang,ZHANG Ji-feng.Stability analysis of systems withproportional-integral generalized predictive control[J].Control Theory and Technology,2007,24(1):19~24.[点击复制]
比例积分型广义预测控制系统的稳定性分析
Stability analysis of systems withproportional-integral generalized predictive control
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DOI编号  10.7641/j.issn.1000-8152.2007.1.004
  2007,24(1):19-24
中文关键词  预测控制  比例积分控制  稳定性分析  频域分析  根轨迹法
英文关键词  predictive control  proportional-integral control  stability analysis  frequency domain analysis  root-locus method
基金项目  国家自然科学基金资助项目 60274021, 60374037, 60428304
作者单位
李韬,陈增强,张纪峰> 1. 中国科学院数学与系统科学研究院系统科学研究所, 北京,100080
2. 南开大学自动化系, 天津,300071
 
中文摘要
      广义预测控制(GPC)系统的闭环稳定性一直是控制理论分析的难点. 本文通 过对预测控制系统闭环特征多项式的研究, 证明了一步预测比例积分型GPC系统的闭环稳定性; 同时, 利用根轨迹法分析了控制参数与闭环极点的关系, 明确了比例积分型GPC中参 数的物理意义. 通过一个数值仿真例子, 从频域分析的角度说明了比例积分型GPC较普通 GPC的优越性.
英文摘要
      The stability analysis of the generalized predictive control (GPC) systems is studied. Based on the analysis of the characteristic polynomial of the closed-loop GPC systems, the stability of the closed-loop systems with one step ahead proportional-integral GPCs is proved. By using the root-locus method, the relationship between the poles of the closed-loop and the design parameters is explored, and the practical meanings of the design parameters in the proportional-integral GPCs are clarified. A simulation example is presented, by which the superiority of the proportional-integral GPC over the conventional GPC is explained from the point of view of frequency domain.