Optimal instrumental variable method for closed-loop identification
Date
2011
Authors
Gilson, M.
Garnier , H.
Young, Peter C
Van den Hof, P.M.J.
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Publisher
Institute of Engineering and Technology
Abstract
This study presents in a new unified way, optimal instrumental variable methods for identifying discrete-time transfer function models when the system operates in a closed loop. The conditions for the optimal design of prefilters and instruments depending on common model structures are analysed and different approaches are developed according to whether the controller is known or not. The performance of the proposed approaches is evaluated by Monte-Carlo analysis in comparison with other alternative closed-loop estimation methods.
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Keywords
Keywords: Closed loop identification; Closed loops; Closed-loop; Discrete-time; Estimation methods; Instrumental variable methods; Monte carlo analysis; Optimal design; Prefilters; Transfer function model; Model structures; Optimization
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Source
IET Control Theory and Applications
Type
Journal article
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2037-12-31
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