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Title: Design of output feedback sliding mode controller for SEPIC converter for robustness
Authors: Sel, Artun
Güneş, Uygar
Kasnakoğlu, Coşku
Keywords: SEPIC
DC-DC converters
Issue Date: Jul-2019
Publisher: Taylor and Francis Ltd.
Source: Sel, A., Güneş, U. and Kasnakoğlu, C. (2019). Design of output feedback sliding mode controller for SEPIC converter for robustness. International Journal of Electronics, 107(2), 239-249.
Abstract: This paper presents an output feedback sliding mode control (SMC) of a SEPIC converter whose utilisation areas include MPPT and PFC in industrial applications. Owing to their discrete nature, DC-DC converters represent challenges in modelling therefore special linearisation techniques are required. In this study, state space averaging method, which is one of those linearisation methods, is employed in the modelling phase of the design process. Since SEPIC has non-minimum phase and non-linear characteristics, conventional linear control algorithms offer unsatisfactory performance in the face of disturbances, thereby requiring more advanced control strategies. Recently, SMC technique has gained popularity due to whose robust nature against parameter variations, modelling uncertainties and disturbances. Output Feedback Discrete Sliding Mode Control (ODSMC) is a SMC control algorithm that requires only output to be measured instead of full state vector, thereby eliminating the observer design process. To validate the superiority of the non-linear controller in the case of supply voltage and load current variations with sensor noise, results of numerical simulations that are carried are also given.
ISSN: 0020-7217
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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