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Adaptive control of a high redundancy actuator using the geometric approach

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conference contribution
posted on 13.07.2009, 12:50 authored by Thomas SteffenThomas Steffen, Argyrios C. Zolotas, Roger Dixon, Roger Goodall
The High Redundancy Actuator project deals with the construction of an actuator using many redundant actuation elements. Whilst this promises a high degree of fault tolerance, the high number of components poses a unique challenge from a control perspective, especially when actuation elements are used in series. This paper describes how an adaptive control scheme can be used to deal with faults in a High Redundancy Actuator. This is based on previous results leading to a simplified model of the HRA with serial elements. In case of the fault, the parameters change, but the otherwise the deviation from the simplified model is minimal. This approach has two benefits. For one, it can restore the original system dynamics even after a fault has occurred. The parameter estimate can also be used for health monitoring purposes, because it reflects the number of effective faults in the HRA.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

STEFFEN, T. ... et al, 2009. Adaptive control of a high redundancy actuator using the geometric approach. IN: Proceedings of 7th IFAC Symposium on Fault Detection, Supervision and Safety of Technical Processes. SafeProcess 2009, Barcelona, Spain, 30 June - 3 July.

Publisher

© IFAC

Version

AM (Accepted Manuscript)

Publication date

2009

Notes

This is a conference paper, it was presented at SafeProcess 2009 [© IFAC]. The definitive version is available at: http://www.ifac-papersonline.net/

Language

en