Robustness of full order and restricted structure optimal control systems

M.J. Grimble

doi:10.1080/00207720410001717389

Robustness of full order and restricted structure optimal control systems

M.J. Grimble

Electronic And Electrical Engineering

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

A simple method for modifying and improving the robustness of LQG optimal controllers is considered. A sensitivity costing term is introduced into the cost index and a fictitious disturbance signal, which affects robustness margins, is discussed. The influence is somewhat different on full-order and restricted-structure designs, and this is explored. Finally, the effect of a coloured measurement noise model on the robustness of the solution is investigated.

Original language	English
Pages (from-to)	375-388
Number of pages	13
Journal	International Journal of Systems Science
Volume	35
Issue number	6
DOIs	https://doi.org/10.1080/00207720410001717389
Publication status	Published - May 2004

Keywords

continuous time systems
control system synthesis
linear quadratic Gaussian control
linear systems
optimal control
robust control
sensitivity

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10.1080/00207720410001717389

Cite this

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abstract = "A simple method for modifying and improving the robustness of LQG optimal controllers is considered. A sensitivity costing term is introduced into the cost index and a fictitious disturbance signal, which affects robustness margins, is discussed. The influence is somewhat different on full-order and restricted-structure designs, and this is explored. Finally, the effect of a coloured measurement noise model on the robustness of the solution is investigated.",

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AB - A simple method for modifying and improving the robustness of LQG optimal controllers is considered. A sensitivity costing term is introduced into the cost index and a fictitious disturbance signal, which affects robustness margins, is discussed. The influence is somewhat different on full-order and restricted-structure designs, and this is explored. Finally, the effect of a coloured measurement noise model on the robustness of the solution is investigated.

KW - continuous time systems

KW - control system synthesis

KW - linear quadratic Gaussian control

KW - linear systems

KW - optimal control

KW - robust control

KW - sensitivity

UR - http://dx.doi.org/10.1080/00207720410001717389

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DO - 10.1080/00207720410001717389

M3 - Article

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VL - 35

SP - 375

EP - 388

JO - International Journal of Systems Science

JF - International Journal of Systems Science

IS - 6

ER -

Robustness of full order and restricted structure optimal control systems

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Keywords

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