Observer-Based Piecewise Affine Output Feedback Controller Synthesis of Continuous-Time T-S Fuzzy Affine Dynamic Systems Using Quantized Measurements

This paper is concerned with the problem of robust H ∞ output feedback control for a class of continuous-time Takagi-Sugeno (T-S) fuzzy affine dynamic systems using quantized measurements. The objective is to design a suitable observer-based dynamic output feedback controller that guarantees the glo...

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Veröffentlicht in:IEEE transactions on fuzzy systems Jg. 20; H. 6; S. 1046 - 1062
Hauptverfasser: Jianbin Qiu, Gang Feng, Huijun Gao
Format: Journal Article
Sprache:Englisch
Veröffentlicht: IEEE 01.12.2012
Schlagworte:
Controller design
Fuzzy systems
Linear matrix inequalities
Lyapunov methods
measurement quantization
Observers
Output feedback
piecewise Lyapunov functions
Quantization
robust {\mathscr H}_{\infty } control
Takagi-Sugeno (T-S) fuzzy affine dynamic systems
ISSN:1063-6706, 1941-0034
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Zusammenfassung:This paper is concerned with the problem of robust H ∞ output feedback control for a class of continuous-time Takagi-Sugeno (T-S) fuzzy affine dynamic systems using quantized measurements. The objective is to design a suitable observer-based dynamic output feedback controller that guarantees the global stability of the resulting closed-loop fuzzy system with a prescribed H ∞ disturbance attenuation level. Based on common/piecewise quadratic Lyapunov functions combined with S-procedure and some matrix inequality convexification techniques, some new results are developed to the controller synthesis for the underlying continuous-time T-S fuzzy affine systems with unmeasurable premise variables. All the solutions to the problem are formulated in the form of linear matrix inequalities (LMIs). Finally, two simulation examples are provided to illustrate the advantages of the proposed approaches.
ISSN:1063-6706
1941-0034
DOI:10.1109/TFUZZ.2012.2191790