Title: Modelling, design and control of a SEPIC power factor corrector for single-phase rectifiers: experimental validation

Authors: Hadi Y. Kanaan; Kamal Al-Haddad; Guillaume Sauriole; Rachid Chaffï

Addresses: Saint-Joseph University, Faculty of Engineering – ESIB, Campus des Sciences et Technologies, Mar Roukos, Mkallès B.P. 11-0514, Riad el Solh Beirut 1107 2050, Lebanon. ' École de Technologie Supérieure (ETS), Canada Research Chair in Energy Conversion and Power Electronics, 1100 Rue Notre-Dame West, Montreal, Quebec, H3C 1K3, Canada. ' École de Technologie Supérieure (ETS), Canada Research Chair in Energy Conversion and Power Electronics, 1100 Rue Notre-Dame West, Montreal, Quebec, H3C 1K3, Canada. ' École de Technologie Supérieure (ETS), Canada Research Chair in Energy Conversion and Power Electronics, 1100 Rue Notre-Dame West, Montreal, Quebec, H3C 1K3, Canada

Abstract: In this paper, a new general case switching-function-based model is proposed for a DC-to-DC single ended primary inductance converter (SEPIC). Compared to conventional buck or boost converters, this topology allows a low current ripple at the input for a relatively low level of the DC-bus voltage. The converter is used as a power factor correction (PFC) circuit for a single-phase rectifier and, based on the obtained model, steady-state analysis is performed and new design criteria were established for a proper selection of the inductors and capacitors. In order to verify the performance of the converter in PFC applications, a simple hysteretic-based feedback control is implemented and verified through simulations. For validation purpose, experiments are carried out on a 1kW laboratory prototype of the converter. The system performance is evaluated in terms of source current total harmonic distortion (THD), voltage regulation, robustness and dynamic behaviour.

Keywords: single ended primary inductance converter; SEPIC; switching function modelling; power factor correction; PFC; single-phase rectifiers; feedback control; experimental validation; hysteresis; source current THD; total harmonic distortion; voltage regulation.

DOI: 10.1504/IJPELEC.2012.046607

International Journal of Power Electronics, 2012 Vol.4 No.3, pp.221 - 239

Accepted: 18 Sep 2011
Published online: 23 Aug 2014 *

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