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Model-Based Control of an Inverter for Wide Range Soft-Switching Operation

: Manthey, F.; Gorodnichev, A.; Langnes, E.; Pangalos, G.; Haase, F.

MESAGO Messe Frankfurt GmbH, Stuttgart:
PCIM Europe 2019, International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management. CD-ROM : Nuremberg, 7-9 May 2019; Proceedings
Berlin: VDE-Verlag, 2019
ISBN: 978-3-8007-4938-6
8 pp.
PCIM Europe <2019, Nuremberg>
Conference Paper
Fraunhofer ISIT ()

This paper presents a novel, control-based approach for soft-switching operation of a single-phase PWM inverter with high switching frequencies of up to 400 kHz. Model-based and optimal control theory is used together with classical gain scheduling in order to obtain an adaptive linear quadratic Gaussian (LQG) controller. Modeling and controller synthesis are complemented by a practical verification of the concept, based on prototype measurements, and with a theoretical analysis of the soft-switching operating region verified by simulation and measurements.