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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2013.10
- 수록면
- 1 - 4 (4page)
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초록· 키워드
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In the paper, a generalized design of a disturbance observer formulated in the transfer function domain is presented for a class of single-input single-output (SISO) linear systems. Since conventional approaches seem to have difficulties in handling all general cases and the Linear Matrix Inequalities (LMI) based H-infinity optimization problem can deal with all linear plants, the proposed disturbance observer is generally designed using an H-infinity approach. First, a general frame of a disturbance observer is proposed when control input and system output are available. Then, from the frame, the H-infinity optimization problem for minimizing L₂-norm of a weighted disturbance estimation error is formulated. Furthermore, it will be shown that the proposed design methodology contains conventional approaches by deriving the robust stability condition of overall closed-loop using coprime factorization. Through numerical examples, the effectiveness and advantages of the proposed approach will be demonstrated.
목차
Abstract
1. INTRODUCTION
2. GENERALIZED DESIGN METHODOLOGY
3. CLOSED-LOOP ROBUST STABILITY CONDITION
4. NUMERICAL EXAMPLES
5. CONCLUSION
REFERENCES
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