Title :
Double star chopper cell converter for battery electric vehicles with inter-module SoC balancing and fault tolerant control
Author :
Kandasamy, Karthik ; Vilathgamuwa, D.M. ; King-Jet Tseng
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
A modularized battery system with Double Star Chopper Cell (DSCC) based modular multilevel converter is proposed for a battery operated electric vehicle (EV). A design concept for the modularized battery micro-packs for DSCC is described. Multidimensional pulse width modulation (MD-PWM) with integrated inter-module SoC balancing and fault tolerant control is proposed and explained. The DSCC can be operated either as an inverter to drive the EV motor or as a synchronous rectifier connected to external three phase power supply equipment for charging the battery micro-packs. The methods of operation as inverter and synchronous rectifier with integrated inter-module SoC balancing and fault tolerant control are discussed. The proposed system operation as inverter and synchronous rectifier are verified through simulations and the results are presented.
Keywords :
battery powered vehicles; fault tolerant control; power convertors; power supplies to apparatus; rectifiers; DSCC; EV motor; battery operated electric vehicle; double star chopper cell converter; external three phase power supply equipment; fault tolerant control; integrated intermodule SoC balancing control; modular multilevel converter; modularized battery micropacks; synchronous rectifier; Batteries; Choppers (circuits); Inverters; Modulation; Rectifiers; Switches; System-on-chip; Double Star Chopper Cell (DSCC); SoC balancing; battery electric vehicle; fault tolerant; modular energy source; multilevel converter;
Conference_Titel :
Industrial Electronics Society, IECON 2014 - 40th Annual Conference of the IEEE
DOI :
10.1109/IECON.2014.7048935
