Title :
Dynamic modeling and performance of a current-mode controlled boost DC-DC Converter with slope compensation
Author :
Song, Byeong-Mun ; Abedi, Mohammad Reza
Author_Institution :
Dept. of Electr. & Comput. Eng., Baylor Univ., Waco, TX, USA
Abstract :
This paper presents dynamic modeling and performance of a current-mode controlled boost DC-DC converter with slope compensation. The current-mode controller is based on average small signal models. The controller consists of two control loops; inner and outer control loops. The inner loop is a current loop controller with slope compensation to force the input current to track the reference current, which is determined by the output of voltage regulator. The outer loop is a PI controller that minimizes the steady state error between the output voltage of the converter and its reference. For validation, experimental results are provided to verify the superiority of the proposed current-mode based Boost converter under 50V/20A load.
Keywords :
DC-DC power convertors; PI control; electric current control; voltage control; PI controller; control loops; current 20 A; current- mode controlled boost DC-DC converter; current-mode based boost converter; dynamic modeling; inner control loops; input current; outer control loops; reference current; signal models; slope compensation; voltage 50 V; voltage regulator; Control systems; Inductors; Integrated circuit modeling; Power supplies; Resistance; Transfer functions; Voltage control;
Conference_Titel :
Transportation Electrification Conference and Expo (ITEC), 2012 IEEE
Conference_Location :
Dearborn, MI
Print_ISBN :
978-1-4673-1407-7
Electronic_ISBN :
978-1-4673-1406-0
DOI :
10.1109/ITEC.2012.6243479
