一类不确定关联系统的分散保性能满意容错控制  

Decentralized Guaranteed Cost Satisfactory Fault-tolerant Control for a Class of Uncertain Interconnected Systems

作　　者：韩笑冬[1,2] 刘建功[2] 谢德晓[1] 张登峰[1] 王执铨[1] 

机构地区：[1]南京理工大学自动化学院,江苏南京210094 [2]中国空间技术研究院通信卫星事业部,北京100094

出　　处：《南京理工大学学报》2010年第5期636-641,共6页Journal of Nanjing University of Science and Technology

基　　金：国家自然科学基金(6057408260804027)

摘　　要：针对一类具有参数不确定性和非线性关联方式的关联离散系统,研究了执行器发生故障时分散保性能状态反馈满意容错控制器的设计。在一个更一般和更实际的连续型执行器增益故障模型下,导出了分散控制器存在的条件,给出了一组分散保性能满意容错控制器的参数化表示。最后,通过建立和求解一个凸优化问题,给出了使得闭环性能指标上界最小化的最优分散保性能满意容错控制器的设计方法。仿真算例验证了方法的有效性。The problem of designing a decentralized guaranteed cost satisfactory fault-tolerant control scheme for a class of discrete large scale interconnected systems with norm-bounded time-varying parameter uncertainties under a class of actuator failures is discussed.Based on a more general and practical model of continuous actuator gain failures,sufficient conditions for the existence of the decentralized controllers are derived,and a parameterized characterization of a set of decentralized guaranteed cost satisfactory fault-tolerant controllers is provided.Furthermore,a convex optimization problem is formulated to select the optimal decentralized guaranteed cost satisfactory fault-tolerant controller which minimizes the upper bound of the closed loop cost function.A simulation example shows the effectiveness of the proposed method.

关 键 词：容错控制 关联系统 分散控制 保性能 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]