H_? Reliable Control Based On Sector Pole Assignment

When the internal variables of the system can be measured completely or the economic loss caused by the measurement is ignored,the state feedback can be selected to realize the control problem of the system,and the state feedback effect has better effect.However,when the actual situation limits the realization of state feedback,for example,the output feedback is needed to design the controller.Static output feedback and dynamic output feedback have their own advantages and disadvantages:the operation of static output feedback is relatively easy,but the feedback information is local;dynamic output feedback has compensation effect and is suitable for global control.In this paper,it is designed for these three kinds of feedback.Due to the sensor or actuator failure of the system will not only damage the components,but also involve safety issues,so in many fields such as medical,aviation,wind power,etc.,the accuracy and reliability requirements of the motor and instrument are very high and strict.Considering the reliable control can reduce the engineering loss,also can mainly promote the safety of the machine,play a role in avoiding the risk.The controller in this paper considers the failure of each channel of the actuator.In this paper,the fan-shaped pole requirements and H_? control index are used as constraints to design controllers and reliable controllers for state feedback,static output feedback and dynamic output feedback respectively when the actuator fails under the constraints of regional pole assignment and H_? control.The first chapter is the preface,which suggests the state of regional pole assignment, H_? control,fault model and fault handling method.The second chapter is the basic content,which ditails the regional pole assignment,fault model and fault handling method in detail,as well as the symbols and lemmas involved in this paper.In Chapter 3,the LMI method is used to design the H_? state feedback reliable controller based on the regional pole assignment.Based on Chapter 3,the fourth chapter designs a H_? reliable controller that meets the pole requirements.The feedback method used is a static output.Numerical simulations of the system without failure and failure are given.In chapter 5,a dynamic method is selected,and a H_? reliable controller that meets the requirements of the fan-shaped poles is designed,and the numerical simulation of the system without failure and failure is also given.