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

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.

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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.

Item Type: Conference or Event Item (Paper)
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.
Divisions: Schools > Architecture Computing and Engineering, School of
Depositing User: Mr Stephen Grace
Date Deposited: 27 Jul 2010 13:27
Last Modified: 27 Sep 2012 11:59
URI: http://hdl.handle.net/10552/912

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