A Compact Two-Stage Power Converter for Flexible Multiple-Battery Charging

Author(s):  
Mengyi Li ◽  
Jinwei He ◽  
Beihua Liang ◽  
Junfei Han
Author(s):  
B. R. Ananthapadmanabha ◽  
Rakesh Maurya ◽  
Sabha Raj Arya ◽  
B. Chitti Babu

Abstract This paper presents a concept of smart charging station using bidirectional half bridge converter for an electric vehicle. This battery charging station is useful for charging applications along with harmonics and reactive power compensation in a distribution system. A filter which is adaptive to the supply voltage frequency is used for the estimation of the 50 Hz component of load current. Due to additional features of vehicle charger, associated with the power quality improvement, there will be a drastic reduction in the current drawn from utility to meet the same load demand. The charging station presented in this paper is termed as smart with several function. The proposed smart charger is able to improve power quality of residential loads or other loads, not only during charging/discharging of the vehicle battery, but also in the absence of the vehicle. The Simulink model is developed with MATLAB software and its simulation results are presented. The level of current distortion during charging and and discharging mode is recorded 1.6 % and 2.4 % respectively with unity supply power factor during experiments. The performance of converter is evaluated during charging modes both in constant current (CC) and constant voltage (CV) modes.


2013 ◽  
Vol 10 (2) ◽  
pp. 261-274 ◽  
Author(s):  
Messaoud Mayouf ◽  
Rachid Abdessemed

This paper presents an energetic comparison between two control strategies of a small size wind generation system for battery charging. The output voltage of the direct drive PMSG is connected to the battery through a switch mode rectifier. A DC-DC boost converter is used to regulate the battery bank current in order to achieve maximum power from the wind. A maximum powertracking algorithm calculates the current command that corresponds to maximum power output of the turbine. The DC-DC converter uses this current to calculate the duty cycle witch is necessary to control the pulse width modulated (PWM) active switching device (IGPT). The system overview and modeling are presented including characteristics of wind turbine, generator, batteries, power converter, control system, and supervisory system. A simulation of the system is performed using MATLAB/SIMULINK.


2012 ◽  
Vol 27 (3) ◽  
pp. 1327-1337 ◽  
Author(s):  
Ruiyang Yu ◽  
Bryan Man Hay Pong ◽  
Bingo Wing-Kuen Ling ◽  
J. Lam

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