Development of Sliding Mode Controller for a Modified Boost ?uk Converter Configuration

Sanjeevikumar Padmanaban, Emre Ozsoy, Viliam Fedák and Frede Blaabjerg
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Sanjeevikumar Padmanaban: Department of Electrical and Electronics Engineering, University of Johannesburg, Auckland Park 2092, South Africa
Emre Ozsoy: Department of Electrical and Electronics Engineering, University of Johannesburg, Auckland Park 2092, South Africa
Viliam Fedák: Department of Electrical Engineering and Mechatronics, FEI TU of Košice, Letná 9, 04200 Košice, Slovakia
Frede Blaabjerg: Centre for Reliable Power Electronics (CORPE), Department of Energy Technology, Aalborg University, 9000 Aalborg, Denmark

Energies, 2017, vol. 10, issue 10, 1-14

Abstract: This paper introduces a sliding mode control (SMC)-based equivalent control method to a novel high output gain ?uk converter. An additional inductor and capacitor improves the efficiency and output gain of the classical ?uk converter. Classical proportional integral (PI) controllers are widely used in direct current to direct current (DC-DC) converters. However, it is a very challenging task to design a single PI controller operating in different loads and disturbances. An SMC-based equivalent control method which achieves a robust operation in a wide operation range is also proposed. Switching frequency is kept constant in appropriate intervals at different loading and disturbance conditions by implementing a dynamic hysteresis control method. Numerical simulations conducted in MATLAB/Simulink confirm the accuracy of analysis of high output gain modified ?uk converter. In addition, the proposed equivalent control method is validated in different perturbations to demonstrate robust operation in wide operation range.

Keywords: closed loop control; ?uk converter; sliding mode control; robustness; active hysteresis control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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