Referenced Items are not available for this document.
In this paper, the small-signal averaged model of a DC-to-DC single ended primary inductance converter (SEPIC), used in single-phase power factor correction (PFC) applications, is derived. 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. Based on the proposed model, a carrier-based Pulse-Width-Modulation (PWM) linear control system is developed in order to ensure a unity power factor at the rectifier AC-side and a regulated voltage across the DC load. Both current and voltage regulators are PI-type. The performance of the proposed control scheme is tested through simulations. The system performance is evaluated in terms of source current Total Harmonic Distortion (THD), input power factor and DC-voltage regulation.
Published in:
Telecommunications Energy Conference, 2008. INTELEC 2008. IEEE 30th International
Date of Conference: 14-18 Sept. 2008
- Page(s):
- 1 - 6
- E-ISBN :
- 978-1-4244-2056-8
- Print ISBN:
- 978-1-4244-2055-1
- INSPEC Accession Number:
- 10386919
- Conference Location :
- San Diego, CA
- Digital Object Identifier :
- 10.1109/INTLEC.2008.4664034
- Product Type:
- Conference Publications
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