Dissertation > Industrial Technology > Automation technology,computer technology > Automated basic theory > Automatic control theory

Reliability Analysis for Linear Systems with Mixed Fault Model

Author WangJianHua
Tutor YaoBo
School Shenyang Normal
Course Operational Research and Cybernetics
Keywords Linear systems Hybrid fault model Actuator failure Pole placement Linear matrix inequality (LMI)
Type Master's thesis
Year 2011
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Control components (actuators \\ sensor) that may arise in the design of the controller, the failure to consider them in the design process, this control called reliable control, also known as the fault-tolerant control, its purpose is to design the controller so that the closed-loop system control unit regardless of Are you a failure can remain stable and meet certain performance indicators. particularly important in the aerospace, nuclear reactor control system, the reliability of the system. practical problems, some of the system is not a single discrete fault models or continuous fault model , that the system is often the coexistence of discrete fault model and continuous fault model, or even a part of the system does not allow failure; This article is designed to build hybrid fault model system discrete fault model and the continuous fault models coexist controller method, this hybrid fault model precisely Veillette discrete fault model and Yang Guang Red continuous fault model based on taking into account the combination of the two models together, making the design of reliable controller when conservative smaller actuator fault for linear systems, designed to create a mixed fault model, based on the second method of Lyapunov, pole placement method, using the LMI approach, reliable control of linear systems Chapter introduces a reliable control, pole placement, overview of the development of linear matrix inequalities, as well as the purpose and significance of the current research status of the paper work. second chapter describes some of the basic concepts of the paper that will be used to need the basic theory of cultural theorem proving Lemma. study Veillette discrete fault model and Yang Guang red continuous fault model and design based on a hybrid fault model. fourth mixed fault model proposed for Chapter chapter study the problem of the reliable control of linear systems and uncertain linear systems with mixed fault model and reliable controller design method is given and numerical simulation. Chapter same hybrid fault model proposed for the third chapter, the study of linear systems and uncertain linear systems with mixed fault model reliable disc pole configuration control problems, and reliable controller design method is given and numerical simulation In all the discussions, we are starting with the corresponding linear system model of the nominal system start analysis, and on this basis to explore the research model of reliability sufficient condition of each chapter, each chapter through numerical simulation the obtained results of the feasibility, correctness and effectiveness; Finally, this article summarizes the prospect and mixed fault model system reliability.

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