Dissertation > Excellent graduate degree dissertation topics show

Robust H_ ∞ linear systems estimation and active fault tolerant control

Author: DongQuanChao
Tutor: ZhongMaiYing
School: Shandong University
Course: Control Theory and Control Engineering
Keywords: H_ ∞ Fault Estimation Active Fault Tolerant Control Delay Systems Finite frequency domain Generalized Internal Model Control
CLC: TP13
Type: PhD thesis
Year: 2010
Downloads: 348
Quote: 0
Read: Download Dissertation

Abstract


Delays widespread in various industrial systems, the main reason is not only the system unstable, and are often the cause actual control system performance deterioration of the main factors. With production practices for equipment and controlled system security and reliability requirements continue to increase, estimated delay system fault tolerant control with active automatic control industry has attracted international attention. In addition, relevant outcomes achieved in almost all concentrated in the full frequency range, but in practice, especially in aerospace and chemical process, failure usually occurs in the low frequency range. For a finite frequency domain delayed fault estimation and fault tolerant control study has important significance. In this thesis, respectively, for several different types of delay systems, in the full frequency range and limited the frequency domain to carry out the observer-based Robust H ∞ fault estimation and fault tolerant control problem studied, the main research work and innovations are as follows: 1 Based on H ∞ filtering ideas, research the nonlinear perturbation affected by delay systems robust H ∞ fault estimation problem. Design observer-based fault detection filter as a fault estimator, by choosing appropriate weighting function, robust H ∞ fault estimation problem is transformed into H ∞ filtering problem. Constructed Lyapunov-Krasovskii functionals to derive and prove fault detection filter depends on the existence of a sufficient condition for delay. Respectively, using the inequality technique and conical fill method is given for solving the observer gain matrix algorithm. (2) based on the generalized coordinate transformation, proposed a linear time-delay system H ∞ fault estimation of finite frequency domain methods. Using the generalized Kalman-Yakubovich-Popov lemma H ∞ fault estimator finite frequency domain estimation performance to meet the sufficient condition and the observer gain matrix solution. Because full account of the likely failure of the frequency range, the proposed finite frequency domain approach than the traditional full-frequency method has better estimation results. 3 uses a generalized internal model control structure with a feedback controller for a class of linear systems H ∞ fault estimation and compensation. Proposes a reflection of the dynamic behavior of the reference fault fault model, the application observer-based fault estimator online estimate and the fault is estimated fault compensation for feedback control. Respectively, by conventional methods and the use of delay decomposition method selected Lyapunov-Krasovskii functionals, derived and proved a sufficient condition for solvability of the problem, and finally gives active fault tolerant control system design methods. Decomposition method using time delay, with the increase in delay interval decomposition, the maximum delay increases, the conservative reduced. 4 presents a linear time-delay system H ∞ fault estimation and compensation of the limited frequency-domain methods. Based on the generalized internal model control structure H ∞ controller and observer-based fault estimator estimates the fault fault compensation for feedback control. Delay systems using the generalized Kalman-Yakubovich-Popov lemma, derive and prove sufficient conditions for solvability of the problem are given active fault tolerant control system design step. Because full account of the likely failure of the frequency range, the proposed finite frequency domain approach than the traditional full-frequency method has better control effect. 5 is proposed based on residual active fault tolerant controller feedback form, that instead of using the residuals to construct the active fault estimation and fault tolerant controller to compensate. Delay systems using the generalized Kalman-Yakubovich-Popov lemma, derivation and prove fault detection filters and active fault tolerant controller meets the finite frequency domain performance metrics sufficient conditions are given for solving the gain matrix iterative linear matrix inequality algorithm , and finally gives active fault tolerant control system design step.

Related Dissertations

  1. Robust Filter Design Based on Polynomially Parameter-dependent Lyapunov Functions,TP13
  2. Stability Analysis of Systems with Time Delays,TP13
  3. Stability of a class of stochastic delay system,TP13
  4. Realization of Fuzzy-smith Control on PLC and Its Application,TP273
  5. Fuzzy Control for Nonlinear Systems Research,TP13
  6. Study on Fault-tolerant Guaranteed Cost Control for Nonlinear Systems,TP13
  7. A class of uncertain linear discrete delay singularly perturbed systems Guaranteed Cost Robust Control and Research,TP13
  8. ADT method based switching delay systems and passive state estimation problem,TP13
  9. The Robust Control for Multi-Agent Coordination with Switching Topology and Time-Delay,TP13
  10. Research on Fault Diganosis for Time-Delay Systems,TH165.3
  11. Robust Passive Control and Robust Passive Filtering for Linear Uncertain Neutral Delay Systems,TP13
  12. Observer-Based Passive Congtrol of Descriptor Systems with Time Delay,TP13
  13. Guaranteed Cost Control for Uncertain Time-delay Systems,TP13
  14. Stability Analysis and Robust H∞ Control for Uncertain Time-Delay Systems,TP13
  15. Containing Delays automotive active suspension system Damping Control,U463.33
  16. Stability and Passive Control of Singular Systems,TP13
  17. Control and Filtering for Linear Uncertain Systems,TP13
  18. Robust Control of Multi-time Delay Singular Systems with Linear Fractional Parametric Uncertainties,TP13
  19. Resilient Guaranteed Cost Control for Uncertain Singular Time-delay Systems: Delay Decomposition Approach,TP13
  20. Non-fragile H_∞ Control for Linear Discrete Singular Systems,TP13
  21. Robust H_∞ Control of Singular Time-delay Systems: Delay Decomposition Approach,TP13

CLC: > Industrial Technology > Automation technology,computer technology > Automated basic theory > Automatic control theory
© 2012 www.DissertationTopic.Net  Mobile