Validation of stability for an induction machine drive using power iterations
2005 (English)In: Proceedings of the 16th IFAC World Congress, 2005, Prague, 2005, Vol. 16, 892-897 p.Conference paper (Refereed)
This work is an extension of the paper (Mosskull et al., 2003), in which the modelling, identification and stability of an nonlinear induction machine drive is studied. The validation of the stability margins of the system is refined by an improved estimate of the induced L2 loop gain of the system. This is done with a procedure called power iterations where input sequences suitable for estimating the gain are generated iteratively through experiments on the system. The power iterations result in higher gain estimates compared to the experiments previously presented. This implies that more accurate estimates are obtained as, in general, only lower bounds can be obtained as estimates for the gain. The new gain estimates are well below one, which suggests that the feedback system is stable. The experiments are performed on an industrial hardware/software simulation platform. in this paper we also discuss the power iterations from a more general point of view. The usefulness of the method for gain estimation of nonlinear systems is illustrated through simulation examples. The basic principles of the method are provided.
Place, publisher, year, edition, pages
Prague, 2005. Vol. 16, 892-897 p.
, 16th Triennial World Congress of International Federation of Automatic Control, IFAC 2005
Drives, Experimental validation, Induction machines, Nonlinear systems, Power method, Stability analysis, Basic principles, Experimental validations, Feedback systems, Gain estimation, Hardware/software, Induction machine drive, Input sequence, Loop gains, Lower bounds, Simulation example, Simulation platform, Stability margins, Automation, Control, Estimation, Experiments, System stability
Research subject SRA - ICT
IdentifiersURN: urn:nbn:se:kth:diva-55401DOI: 10.3182/20050703-6-CZ-1902.00150ScopusID: 2-s2.0-79960735969ISBN: 978-3-902661-75-3OAI: oai:DiVA.org:kth-55401DiVA: diva2:471632
the 16th IFAC World Congress, 2005, Czech Republic, 4-8 Aug 2005
Sponsors: 16th Triennial World Congress of International; Federation of Automatic Control, IFAC 2005. QC 201201122012-01-022012-01-022016-06-22Bibliographically approved