抵御执行器故障的H∞静态输出反馈可靠控制
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引用本文:徐艺超,姚波,王福忠.抵御执行器故障的H∞静态输出反馈可靠控制[J].计算技术与自动化,2017,(1):12-16
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作者单位
徐艺超,姚波,王福忠 (1沈阳师范大学 数学与系统科学学院辽宁 沈阳110034
2 沈阳工程学院 基础教学部辽宁 沈阳110136) 
中文摘要:针对线性系统,考虑连续增益故障模型,研究了具有执行器故障的H∞静态输出反馈可靠控制问题。首先,在执行器无故障的前提下,给出H∞性能指标存在的充分条件,进而得出系统的静态输出反馈控制率。然后,基于执行器故障,重新设计静态输出反馈控制器,利用求解线性矩阵不等式的方法,完成静态输出反馈可靠控制器的设计。由此可靠控制器构成的闭环系统,使得当执行器发生故障时,也可使闭环系统的保持渐近稳定。最后的数值仿真验证了本文结果的有效性和可行性。
中文关键词:执行器故障  静态输出反馈  线性系统  可靠控制  线性矩阵不等式(LMI)
 
Static Output Feedback Reliable Control with H∞ Performance Against Actuator Failures
Abstract:Considering the continuous fault model,for a linear system, problem of a static output feedback reliable controller with performance was proposed . First, for the system without any faults, We can get a feedback controller, the system will remain asymptotically stable, but the controller will lose efficacy when the system with actuator failures.Then, under the actuator failures, we deduced the sufficient condition that make the system remain asymptotically again. A static output feedback reliable controller can be obtained by using linear matrix inequality. A simulation example was given to illustrate the feasibility and effectiveness of the results.
keywords:actuator failures  static output feedback  linear system  reliable control  linear matrix inequality(LMI)
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