LLC Resonant Tank based Converter for EV Charging Application

S Nagaraj,R Ranihemamalini,L Rajaji,A Mohandoss,K Srividya,

doi:10.35940/ijeat.b3050.029320

Abstract

The aim of the article is to maximize the battery life using LLC resonant tank. LLC tank designing methodology and also the practical designing examination is introduced in LLC multi converter. Designed dc- dc converter increases the battery life by eliminating low and high frequency current ripples. In addition, bridgeless cuk converter is used for power factor improvement. To achieve the better power factor and to reduce the conduction losses the cuk converter is aimed to function in discontinuous mode of conduction (DCM). DC output voltage ranging 42-24 V for 650 W is obtained from the modelling for battery charging application.

Highlights

Rechargeable battery supplies power to electric motor to drive electric vehicle [1],[2]
The battery charger’s wide output voltage specifications are extremely challenging and varying while comparing to telecom applications that operates in a narrowed
The operation of a discontinuous mode of conduction (DCM) is acquired under the following condition

Summary

Introduction

Rechargeable battery supplies power to electric motor to drive electric vehicle [1],[2]. The standard battery systems storage capability demand is increased. Even though battery technology is improved, the system requires high current and high voltage to charge these batteries. Nowadays the smart charger battery charging methodology becomes very difficult due to the advancement in charging algorithms [3]. A smart charger with low distortion is required because of increased disturbances in quick charging of excessive potential of battery packs. The proposed architecture block includes a bridgeless cuk converter, followed by a resonant converter as depicted in Fig. 1 which rejects the current ripple charging energy storage system i.e., battery using a high frequency transformer. The battery charger’s wide output voltage specifications are extremely challenging and varying while comparing to telecom applications that operates in a narrowed.

Objectives

Methods

Results