Research Of Fault-Tolerant Control For Generalized Systems With Integrity

With the rapid development of production and technology,control systems are more and more large scale also contains many components,in the long-term continuous operation,the component failure almost inevitable.These failures can cause a serious decline in the performance of the systems and even cause the out of control.Therefore,it was an urgent need to improve the modern systems reliability and security;fault-tolerant control which improve complex systems of reliability opened up a new way.Fault-tolerant technology is a methodology about the systems fault tolerance,refers to when the system in one or more key components of failure,the system can continue to safe and stable operation performance,that is,the integrity of the system.For large-scale generalized systems,centralized control will make the whole control systems are very complex exchanged of information,the cost of communication is very high,thus making centralized control in large-scale systems control has become very impractical.In view of these,a kind of centralized control in order to overcome the above-mentioned shortcomings,the use of decentralized structure of the decentralized control in the 70s of last century came into being,and showed a very bright prospect by the control theory and engineering attached great importance to and extensive researched.In this paper,the use of LMI and the Riccati equation as well as Lyapunov stability of equations focused on the related theory of the fault-tolerant control for the generalized systems with integrity.The main research achievements include the followings:1.About generalized interconnected of decentralized systems guaranteed cost control.LMI methods used to obtain a generalized correlation decentralized guaranteed cost static output feedback controller is a sufficient condition for existence,at the same time construct the decentralized guaranteed cost control law;this control law allows for the design problem eventually turned into a group of problem solving LMI.2.Regarding the singular systems with actuators failure on the integrity of distributed control.At first,for the generalized systems,in case of part of actuators are failure,designing the decentralized controller,making the closed-loop asymptotic stability of singular systems;furthermore,the use of Lyapunov stability theory derived controller in the condition of actuators failure for the integrity.Then use LMI to simplify this condition;At last,the controller will be designed for the actual number of examples to verify the effectiveness of the proposed method.3.One class of uncertain singular systems with fault-tolerant control.First of all, Using LMI to design of state feedback,making the generalized systems asymptotically stable in case of actuators are not failure.Then,when the actuators of generalized systems fail,designing of state feedback makes the closed-loop asymptotic stability of singular systems.Further,the use of LMI to design of generalized systems under state feedback with the integrity of the fault-tolerant controller.At the same time,in the sensors failure case,the design of generalized systems under output feedback fault-tolerant controller with integrity.4.Generalized Systems of integrity of the disk regional controller design for fault-tolerant.Using LMI for descriptor systems in output feedback sensor failure cases is regular,impulse-free,and the corresponding closed-loop poles located in a given region of the known conditions of the disc,that is,the system has D-allowed for the fault.Thus the expect designing at output feedback controller become into a constant and a given matrix can be achieved.