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Energies 2017, 10(10), 1513; doi:10.3390/en10101513

Development of Sliding Mode Controller for a Modified Boost Ćuk Converter Configuration

1
Department of Electrical and Electronics Engineering, University of Johannesburg, Auckland Park 2092, South Africa
2
Department of Electrical Engineering and Mechatronics, FEI TU of Košice, Letná 9, 04200 Košice, Slovakia
3
Centre for Reliable Power Electronics (CORPE), Department of Energy Technology, Aalborg University, 9000 Aalborg, Denmark
*
Author to whom correspondence should be addressed.
Received: 18 June 2017 / Revised: 11 July 2017 / Accepted: 13 July 2017 / Published: 29 September 2017
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Abstract

This paper introduces a sliding mode control (SMC)-based equivalent control method to a novel high output gain Ćuk converter. An additional inductor and capacitor improves the efficiency and output gain of the classical Ćuk 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 Ćuk converter. In addition, the proposed equivalent control method is validated in different perturbations to demonstrate robust operation in wide operation range. View Full-Text
Keywords: closed loop control; Ćuk converter; sliding mode control; robustness; active hysteresis control closed loop control; Ćuk converter; sliding mode control; robustness; active hysteresis control
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Padmanaban, S.; Ozsoy, E.; Fedák, V.; Blaabjerg, F. Development of Sliding Mode Controller for a Modified Boost Ćuk Converter Configuration. Energies 2017, 10, 1513.

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