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Subtleties in the averaging of hybrid systems with application to power electronics
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-9940-5929
KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Optimization and Systems Theory.
2006 (English)In: 2nd IFAC Conference on Analysis and Design of Hybrid Systems, 2006 / [ed] C.G. Cassandras, A. Giua, C. Seatzu, J. Zaytoon, IFAC , 2006Conference paper, Published paper (Refereed)
Abstract [en]

Dither signals are commonly used in electronics for implementing different type of modulations in power converters, which represent a very interesting class of hybrid systems. It was recently shown that a nonsmooth dithered system can be approximated by an averaged system provided that the dither frequency is sufficiently high and that the amplitude distribution function of the dither is absolutely continuous and has bounded derivative. This result is exploited in this paper for power converters. Averaged models corresponding to various shapes of dither signal are analyzed, showing that dither with Lipschitz continuous amplitude distribution function can be used to adapt the equivalent gain of the power converter.

Place, publisher, year, edition, pages
IFAC , 2006.
National Category
Control Engineering
URN: urn:nbn:se:kth:diva-84420DOI: 10.3182/20060607-3-IT-3902.00045OAI: diva2:499316
IFAC Conference on Analysis and Design of Hybrid Systems, Alghero, Sardinia, Italy
QC 20120221Available from: 2012-02-21 Created: 2012-02-13 Last updated: 2012-02-21Bibliographically approved

Open Access in DiVA

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