Sliding mode vector control of PMSM drives with flexible couplings in motion control

Conference paper


Dodds, Stephen J. and Vittek, J. 2009. Sliding mode vector control of PMSM drives with flexible couplings in motion control. Proceedings of Advances in Computing and Technology. (AC&T) The School of Computing and Technology 4th Annual Conference University of East London pp. 77-85
AuthorsDodds, Stephen J. and Vittek, J.
TypeConference paper
Abstract

A new control system for permanent magnet synchronous motor electric drives with a
significant torsion vibration mode in the mechanical coupling is presented based entirely on sliding mode
principles to achieve robustness against external load torques and parametric modelling uncertainties. The
user is only required to provide the demanded position and specify the settling time, no controller tuning
being necessary. The vector control condition of keeping the direct axis current component approximately
zero is satisfied as well as controlling either the rotor or load position to follow the demanded position with
prescribed closed loop dynamics. To avoid control chatter, a boundary layer is introduced by replacing the
relay control switching transfer characteristic (signum function) by a high gain having the same control
saturation limits. Any steady state errors with a constant demanded rotor angle due to the finite value of the
aforementioned gain are eliminated by means of an outer integral control loop. The simulations predict that
the desired robustness will be achieved.

KeywordsPMSM; permanent magnet synchronous motor; closed loop dynamics; mechanical loads; industrial machinery design
Year2009
ConferenceProceedings of Advances in Computing and Technology
Publisher's version
License
CC BY-ND
Publication dates
Print2009
Publication process dates
Deposited27 Jul 2010
Web address (URL)http://www.uel.ac.uk/act/proceedings/documents/FinalProceedings.pdf
http://hdl.handle.net/10552/912
Additional information

Citation:
Dodds, S.J. and Vittek, J. (2009) ‘Sliding mode vector control of PMSM drives with flexible couplings in motion control’ Proceedings of Advances in Computing and Technology, (AC&T) The School of Computing and Technology 4th Annual Conference, University of East London, pp.77-85.

Place of publicationUniversity of East London
Page range77-85
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https://repository.uel.ac.uk/item/86434

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