A Single-Phase Buck and Boost AC-to-AC Converter with Bipolar Voltage Gain: Analysis, Design, and Implementation

Naveed Ashraf, Tahir Izhar, Ghulam Abbas, Valentina Balas, Marius M. Balas, Tsung-Chih Lin, Muhammad Usman Asad, Umar Farooq and Jason Gu
Additional contact information
Naveed Ashraf: Electrical Engineering Department, University of Engineering and Technology, Lahore 54890, Pakistan
Tahir Izhar: Electrical Engineering Department, University of Engineering and Technology, Lahore 54890, Pakistan
Ghulam Abbas: Electrical Engineering Department, The University of Lahore, Lahore 54000, Pakistan
Marius M. Balas: Automatics and Applied Software Department, “Aurel Vlaicu” University of Arad, Arad 310130, Romania
Tsung-Chih Lin: Department of Electronic Engineering, Feng Chia University, Taichung 40744, Taiwan
Muhammad Usman Asad: Electrical and Computer Engineering Department, Dalhousie University, Halifax, NS B3H 4R2, Canada
Umar Farooq: Electrical and Computer Engineering Department, Dalhousie University, Halifax, NS B3H 4R2, Canada
Jason Gu: Electrical and Computer Engineering Department, Dalhousie University, Halifax, NS B3H 4R2, Canada

Energies, 2019, vol. 12, issue 7, 1-17

Abstract: In this research, a new single-phase direct AC-to-AC converter, operating in buck and boost mode, with a bipolar voltage gain, is proposed. The operation is accomplished through high frequency direct and indirect PWM control of a single switch with low voltage stresses. This reduces, not only the control effort, but also the switching losses. The low voltage stresses across the high frequency switches, reduce the dv / dt problem significantly without any loss and bulky voltage snubber arrangement. The operation, in its all-operating modes, has a low inductor ripple current and switching current. The proposed converter may be employed as an AC voltage restorer in a power distribution system to cope with the voltage sag and swell issues. The detailed analysis of the proposed converter is carried out in order to compare its performance with the existing converters. The simulation results obtained using the MATLAB/Simulink environment are verified through experimental results.

Keywords: bipolar voltage gain; direct ac-to-ac converter; PWM control; voltage stresses; voltage sag and swell (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: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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