Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (4): 56-58.DOI: 10.3778/j.issn.1002-8331.2010.04.018

• 研发、设计、测试 • Previous Articles     Next Articles

A class of controller design method to system with uncertainty

WEI Rui-hua,XU Li-hong   

  1. Department of Control Theory and Engineering,Tongji University,Shanghai 200092,China
  • Received:2009-03-19 Revised:2009-05-18 Online:2010-02-01 Published:2010-02-01
  • Contact: WEI Rui-hua

一类克服模型不确定性的控制器设计

蔚瑞华,徐立鸿   

  1. 同济大学 控制与科学工程系,上海 200092
  • 通讯作者: 蔚瑞华

Abstract: This paper presents a control design method for a class of system with modeling uncertainties or nonlinearities.The proposed controller has a paralleled structure of model-based Generalized Predictive Controller(GPC) and PID controller.It can make full use of the model information,meanwhile resisting disturbance and overcoming the structure uncertainty and nonlinearity in a certain degree.The simulation and comparison with other control methods show that this method has better tracking performance,disturbance resistance,robustness and great feasibility to be implemented in engineering application.

摘要: 针对控制对象存在模型不确定性及非线性的特点,提出了基于带有权重的广义预测控制GPC和PID控制并联控制的控制器设计方法。该方法不仅能够充分利用控制对象的模型信息,而且能在一定程度上克服模型中存在的结构不确定性及非线性,并且具有很好的抗干扰能力。还通过仿真实例与其他控制方法对比,结果表明该方法控制精度高,鲁棒性及抗干扰能力较强并具有工程应用实施的可行性。

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