Title :
Modeling and simulation of switched capacitor converters for electric vehicle energy storage systems
Author :
Amjadi, Zahra ; Williamson, Sheldon S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, QC, Canada
Abstract :
This paper presents the analysis and novel controller design for a hybrid 4-quadrant (4-Q) switched-capacitor (SC) Luo and a conventional buck-boost bidirectional DC/DC converters, for HEV/PHEV energy storage system applications, based on power of traction motor and battery current gradient. Features of voltage step-down, voltage step-up, and bi-directional power flow are integrated into a single circuit. The novel hybrid controller strategy enables simpler dynamics compared to a standard buck converter, with input filter, good regulation capability, low EMI, lower source current ripple, ease of control, and continuous input current waveform in both modes of operation (buck and boost modes).
Keywords :
DC-DC power convertors; automotive electronics; battery powered vehicles; energy storage; hybrid electric vehicles; load flow; switched capacitor networks; traction motors; HEV-PHEV energy storage system; battery current gradient; buck-boost bidirectional DC-DC converters; continuous input current waveform; electric vehicle energy storage systems; hybrid 4-quadrant switched-capacitor; hybrid controller strategy; input filter; low EMI; switched capacitor converter simulation; traction motor; voltage step-down; voltage step-up; Batteries; Capacitors; Converters; DC motors; Inductors; Traction motors; Battery storage; control; electric vehicles; energy storage; power electronics;
Conference_Titel :
Vehicle Power and Propulsion Conference (VPPC), 2010 IEEE
Conference_Location :
Lille
Print_ISBN :
978-1-4244-8220-7
DOI :
10.1109/VPPC.2010.5729163
