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Design and Implementation of a Control System for the Interleaved Boost PFC Converter in On-Board Battery Chargers
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 Title & Authors
Design and Implementation of a Control System for the Interleaved Boost PFC Converter in On-Board Battery Chargers
Lee, Jun Hyok; Jung, Kwang-Soon; Lee, Kyung-Jung; Jung, Jae Yeop; Kim, Ho Kyung; Hong, Sung-Soo; Ahn, Hyun-Sik;
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 Abstract
In this paper, we propose a digital controller design process for the interleaved type of a boost PFC (Power Factor Correction) converter which can disperse the heat of the switching devices due to the interleaved topology. We establish a mathematical model of a boost PFC converter and propose a controller design method based on the root locus. The performance of the designed controller is verified by simulations. The measurement of the input voltage, inductor currents, and the converter output link voltage are needed for the control of the converter system which consists of a power unit and a control unit where a high-performance 32-bit microcontroller is used. The adjustment of A/D conversion timing is also needed to avoid high frequency noise generated when the switches on/off. It is illustrated by the real experiments that the designed control system with the properly adjusted ADC timing satisfies the given performance specifications of the interleaved boost PFC converter in the on-board slow battery charger.
 Keywords
OBC(On Board Charger);Interleaved Boost PFC Converter;Digital Controller;Root Locus;A/D Conversion;
 Language
Korean
 Cited by
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