POWER CONVERTER FOR BATTERY CHARGER IN PLUG-IN HYBRID AND ELECTRIC VEHICLES

Abstract

Plug-in Hybrid Electric Vehicles(PHEV)iand Electric Vehicles are rollediout for the consumer, and become popular in a short period of time.With the advent of Batteryichargers for PHEVs there is a big opportunity for the powerisupply Industries to deployilarge number of charging stations ,affordable and easy to use,home charging station . Overall charging efficiency advancement is a important factor for the approval of these itechnologies,when the performance increase the charging hour and service charge decrease. Power factor correction is important to achieve regulatory standards for the AC supply mains. Chargers with smaller size which could render more power are needed as minimal space is available in vehicle and power consumption is increasing with time,Important part of a charging system is the AC-DC converter connected in front end, which should attain high power density and high efficiency . Different front end AC-DC conventional plug in hybrid electric vehicle charger converter topologies are examined and to enhance the efficiency and performance a new bridgelessiinterleavediandia phaseishiftedisemibridgelessipowerifactoricorrected converter are proposed , which is remarkable to optimize theichargerisize, chargingitime,iandithe amountiandicostiof electricityidrawnifrom the utility. A comprehensive analyticalimodeliforithese topologies is developed,with the help of which powerilossesiandiefficiency are calculated . Experimentaliand simulation results ofiprototype Bridgeless interleavediboost converter which convertithe universal AC input voltage toi400 V DC at 3.4 kW areiprovided to authenticate theiproof of concept, and analyticaliwork discribed in this thesis.iThe results show a powerifactor greater than 0.99 from 750 Wito 3.6 kW, THD less than 5% from half load to fulliload and a peak efficiencyiof 98 % ati264 V input andi1000 W load