Although these converters are advantageous to be used in low power applications because of simplicity of control, on contrary they suffer from large current stresses and high conduction loss. In order to operate PFC converters in DCM, only the DC output voltage needs to be sensed. The DC-DC converters like boost, buck–boost, and Cuk with discontinuous mode of operation possess power factor correction features. These converters are designed to operate in continuous or discontinuous conduction mode (CCM or DCM). Power-factor correction (PFC) converters based on non-isolated/isolated DC-DC converters have been widely used in electric vehicle battery charger circuits. The performance of the converter is tested both in steady state and transient conditions. To investigate the performance of the converter in terms of power quality indices like THD, input PF of source voltage and source current are evaluated under constant voltage and constant current modes of battery charging, for wide range of supply voltage variations. The developed simulink model is validated by a prototype model of same specification using Xilinx made Spartan3 processor under MATLAB environment in real time. The modeling and simulation of converter are carried out in the Simulink environment of MATLAB software. The proposed converter is designed to operate in a continuous conduction mode. It yields improvement in efficiency at the low input supply voltage over the single-switch converters such as buck-boost, fly-back, SEPIC, and Cuk topologies and two-switch buck-boost cascaded converters. The proposed converter offers high voltage gain, low voltage stress across the switch, lower conduction losses and reverse recovery losses during low input voltage condition. In this paper, an improved power quality converter derived from Cuk converter is proposed for the electric vehicle battery charging under universal-input voltage operation. 2 Department of Electrical and Electronics Engineering, University of Nottingham (U.K) Malaysia Campus, 43500-Semenyih, Selangor, MalaysiaĮ-mail: 1 March 2017 Accepted 21 August 2017 Publication 11 September 2017 Abstract.1 Department of Electrical Engineering, Sardar Vallabhbhai National Institute of Technology, Surat-395007, India.Ananthapadmanabha, 1 Rakesh Maurya, 1 Sabha Raj Arya 1 B. Electric Vehicle Battery Charger with Improved Power Quality Cuk-Derived PFC Converterī.
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