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An H<sub>∞</sub> Output Feedback Control for Uncertain Singularly Perturbed T-S Fuzzy Systems
류석환,오설동,Yoo, Seog-Hwan,Wu, Xue-Dong Korean Institute of Intelligent Systems 2009 한국지능시스템학회논문지 Vol.19 No.6
This paper deals with an $H_{\infty}$ output feedback controller design for uncertain singularly perturbed T-S fuzzy systems. Integral quadratic constraints are used to describe various kinds of uncertainties of the plant. It is shown that the $H_{\infty}$ norm of the uncertain singularly perturbed fuzzy system is less than $\gamma$ for a sufficiently small $\varepsilon$ > 0 if the $H_{\infty}$ norms of both the slow and fast subsystem are less than $\gamma$. Using this fact, we develop a linear matrix inequality based design method which is independent of the singular perturbation parameter $\varepsilon$. A numerical example is provided to demonstrate the efficacy of the proposed design method.
류석환,오설동 한국지능시스템학회 2010 한국지능시스템학회논문지 Vol.20 No.2
This paper deals with a nonlinear fuzzy H∞ filter design for SOC(state of charge) estimation in Lithium polymer battery. The dynamic equation of the battery cell is modeled as a T-S fuzzy system and the filter is designed via solutions of linear matrix inequalities. In order to illustrate the performance of the designed filter, a computer simulation is performed using the experimental data with the UDDS(urban dynamometer driving schedule) current profile. 본 논문은 리튬폴리머 배터리의 잔존충전용량 추정을 위한 비선형 퍼지 H∞ 필터의 설계 방법을 제시한다. 배터리 셀의 동적방정식을 T-S 퍼지시스템으로 모델하고 선형행렬 부등식의 해를 이용하여 퍼지필터를 설계한다. 제시한 퍼지 H∞ 필터의 성능을 입증하기 위하여 UDDS 전류 프로파일을 사용한 실험 데이터를 이용하여 모의실험을 수행하였다.
잔존충전용량 추정을 위한 퍼지 H<SUB>∞</SUB> 필터 설계
류석환(Seog-Hwan Yoo),오설동(Wu Xuedong) 한국지능시스템학회 2010 한국지능시스템학회논문지 Vol.20 No.2
본 논문은 리튬폴리머 배터리의 잔존충전용량 추정을 위한 비선형 퍼지 H∞ 필터의 설계 방법을 제시한다. 배터리 셀의 동적방정식을 T-S 퍼지시스템으로 모델하고 선형행렬 부등식의 해를 이용하여 퍼지필터를 설계한다. 제시한 퍼지 H∞ 필터의 성능을 입증하기 위하여 UDDS 전류 프로파일을 사용한 실험 데이터를 이용하여 모의실험을 수행하였다. This paper deals with a nonlinear fuzzy H∞ filter design for SOC(state of charge) estimation in Lithium polymer battery. The dynamic equation of the battery cell is modeled as a T-S fuzzy system and the filter is designed via solutions of linear matrix inequalities. In order to illustrate the performance of the designed filter, a computer simulation is performed using the experimental data with the UDDS(urban dynamometer driving schedule) current profile.
An H<SUB>∞</SUB> Output Feedback Control for Uncertain Singularly Perturbed T-S Fuzzy Systems
Seog-Hwan Yoo(류석환),Wu Xuedong(오설동) 한국지능시스템학회 2009 한국지능시스템학회논문지 Vol.19 No.6
This paper deals with an H∞ output feedback controller design for uncertain singularly perturbed T-S fuzzy systems. Integral quadratic constraints are used to describe various kinds of uncertainties of the plant. It is shown that the H∞ norm of the uncertain singularly perturbed fuzzy system is less than γ for a sufficiently small ε>0 if the H∞ norms of both the slow and fast subsystem are less than γ. Using this fact, we develop a linear matrix inequality based design method which is independent of the singular perturbation parameter ε. A numerical example is provided to demonstrate the efficacy of the proposed design method.