AnH(infinity)Design of Disturbance Observer for a Class of Linear Time-invariant Single-input/Single-output Systems

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In the paper, a generalizedH(infinity)framework for design of a disturbance observer (DOB) is newly presented for a class of linear time-invariant single-input/single-output systems. Motivated by the systematic synthesis of a stabilizing controller through theH(infinity)optimization, we formulate the DOB design method into anH(infinity)design problem with weighting functions in the frequency domain. Thanks to its generality, the proposed method can be consistently applied either to the unstable systems or the non-minimum phase systems. Through the examples, the efficacy of the method is validated.
Publisher
INST CONTROL ROBOTICS & SYSTEMS, KOREAN INST ELECTRICAL ENGINEERS
Issue Date
2020-07
Language
English
Article Type
Article
Citation

INTERNATIONAL JOURNAL OF CONTROL AUTOMATION AND SYSTEMS, v.18, no.7, pp.1662 - 1670

ISSN
1598-6446
DOI
10.1007/s12555-019-0045-1
URI
http://hdl.handle.net/10203/275135
Appears in Collection
ME-Journal Papers(저널논문)
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