Performance trade-offs in disturbance feedforward compensation of active hard-mounted vibration isolators

Michiel A. Beijen, Marcel F. Heertjes, Hans Butler, Maarten Steinbuch

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

10 Citations (Scopus)
1 Downloads (Pure)

Abstract

With disturbance feedforward compensation (DFC), input disturbances are measured and compensated to cancel the effect of the disturbance. Perfect cancellation is not possible in practice due to the causal nature of DFC, in which the compensation generally comes too late. Therefore, non-perfect plant inversion, controller discretization and sensor dynamics lead to a non-zero residual error. The properties of this residual error are described in the frequency domain using a theoretical framework that is closely related to the design constraints known from filtering theory. It is shown that, like in feedback control systems, performance limitations of DFC systems are described by a waterbed effect. An experimental validation is included to demonstrate the properties of the residual error on an active hard-mounted vibration isolation setup.

Original languageEnglish
Title of host publicationACC 2015 - 2015 American Control Conference
Place of PublicationPiscataway, NJ
PublisherIEEE
Pages2149-2154
Number of pages6
ISBN (Electronic)978-1-4799-8684-2
ISBN (Print)978-1-4799-8685-9 (CD)
DOIs
Publication statusPublished - 28 Jul 2015
Externally publishedYes
Event2015 American Control Conference, ACC 2015 - Chicago, United States
Duration: 1 Jul 20153 Jul 2015

Publication series

NameProceedings of the American Control Conference
PublisherIEEE
Volume2015
ISSN (Print)0743-1619
ISSN (Electronic)2378-5861

Conference

Conference2015 American Control Conference, ACC 2015
Abbreviated titleACC
Country/TerritoryUnited States
CityChicago
Period1/07/153/07/15

Keywords

  • n/a OA procedure

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