Title
Three-phase three-level current-source converter for EVs fast battery charging systems
Abstract
This paper presents a three-phase three-level fast battery charger for electric vehicles (EVs) based in a current-source converter (CSC). Compared with the traditional voltage-source converters used for fast battery chargers, the CSC can be seen as a natural buck-type converter, i.e., the output voltage can assume a wide range of values, which varies between zero and the maximum instantaneous value of the power grid phase-to-phase voltage. Moreover, using the CSC it is not necessary to use a dc-dc back-end converter in the battery side, and it is also possible to control the grid current in order to obtain a sinusoidal waveform, and in phase with the power grid voltage (unitary power factor). Along the paper is described in detail the proposed CSC for EVs fast battery charging systems: the circuit topology, the power control theory, the current control strategy and the grid synchronization algorithm. Several simulation results of the EV fast battery charger operating with a maximum power of 50 kW are presented.
Year
DOI
Venue
2015
10.1109/ICIT.2015.7125293
Industrial Technology
Keywords
Field
DocType
current-source converter,electric vehicle,fast battery charger,phase locked loops,simulation
Boost converter,Battery charger,Power factor,Maximum power point tracking,Electronic engineering,Control engineering,Engineering,Battery (electricity),Buck converter,Electrical engineering,Constant power circuit,Automotive battery
Conference
Citations 
PageRank 
References 
0
0.34
8
Authors
6