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Exponential Non-Linear Carrier Controller

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Author(s): Mojtaba Forooghi | Hamid Katiraee

Journal: Majlesi Journal of Electrical Engineering
ISSN 2008-1413

Volume: 1;
Issue: 3;
Start page: 63;
Date: 2007;
Original page

Keywords: Power Factor | Boost Regulator | Non Linear Carrier Controller | Fly Back Regulator.

ABSTRACT
In this paper, a non-linear carrier controller with an exponential carrier generator is designed and simulated for power factor correction (pfc). then, this controller is applied to single phase and three phase rectifier using a boost regulator for PFC. the power factor and its variations are measured by computer simulation against the changes in various loads and switching frequencies and the results are discussed. In order to produce voltages lower than the input voltage, a PFC using a buck regulator is used in rectifiers. However, the buck type PFC produces lower power factor then the boost type. For this reson, a flyback regulator is used as a PFC to produce lower voltage then input voltage. Power factor obtained by computer simulation of Fly back pfc are acceptable and are above 95%.
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