Title :
Design and implementation of a digital automatic high frequency battery charger for HEV application
Author :
Chandrasekar, V. ; Joseph, Sigi C. ; Chacko, Renji V. ; Lakaparampil, Z.V.
Author_Institution :
Power Electron. Group, Centre for Dev. of Adv. Comput., Thiruvananthapuram, India
Abstract :
The Hybrid Electric Vehicles (HEV) are in the market today, overcoming the limitations of Electric Vehicles (EV) in range as well meeting the stringent emission regulations. Most of the commercial HEVs are designed to have a minimum of six hour halt period to take care of daily maintenance and steady battery charging. A requirement of a compact, cheaper and efficient battery charger has become vital in the development of HEVs. Here an attempt has been made to develop an offline charger and meet the above requirements for a three wheeler series HEV implementation. This is an off board portable charger suitable for lead acid batteries that are extensively used in the HEV implementations in India. The charger is of 350W rating which has taken care of constant current (CC), taper current (TC), constant voltage (CV) & equalizing charging requirements suitable for lead acid batteries through a digital controller and high frequency isolated power hardware. This offline charger is a 25kHz MOSFET based soft switching full bridge converter with gating from DSP & CPLD based digital controller charging a 60V, 60AH battery, has been implemented as per the specifications of Automotive India Standards (AIS) followed by Automotive Research Association of India (ARAI).
Keywords :
battery chargers; digital control; digital signal processing chips; environmental factors; hybrid electric vehicles; maintenance engineering; portable instruments; power MOSFET; programmable logic devices; secondary cells; zero current switching; AIS; ARAI; Automotive India Standards; Automotive Research Association of India; CPLD; DSP; HEV application; MOSFET; complex programmable logical device; constant current requirements; constant voltage requirements; daily maintenance; digital automatic high frequency battery charger; digital controller; digital signal processor; emission regulations; equalizing charging requirements; frequency 25 kHz; high frequency isolated power hardware; lead acid batteries; metal oxide semiconductor field effect transistor; off-board portable charger; power 350 W; soft switching full bridge converter; steady battery charging; taper current; three-wheeler series HEV implementation; voltage 60 V; Batteries; Bridge circuits; Hardware; Hybrid electric vehicles; Logic gates; MOSFET circuits; Switches; Complex Programmable Logical Device; Digital Signal Processor; Equalizing Charging; Full Bridge Converter; Metal Oxide Semiconductor Field Effect Transistor; Soft Switching;
Conference_Titel :
Electric Vehicle Conference (IEVC), 2012 IEEE International
Conference_Location :
Greenville, SC
Print_ISBN :
978-1-4673-1562-3
DOI :
10.1109/IEVC.2012.6183260
