scholarly journals A Novel Design of Electric Vehicle Battery Charger using Modified Bridgeless Landsman Converter

2020 ◽  
pp. 20-23
Author(s):  
Pradeep Katta ◽  
Mohammed Ovaiz A ◽  
Prabaakaran K ◽  
Priya M ◽  
Keerthana K ◽  
...  
Keyword(s):  
Electric Vehicle ◽  
Power Factor ◽  
Current Mode ◽  
Input Voltage ◽  
Constant Current ◽  
Battery Charger ◽  
Unity Power Factor ◽  
Electric Vehicle Battery ◽  
Power Factor Improvement ◽  
Novel Design

This paper includes the design and implementation of a new electric vehicle charger, which is powered using a battery consisting of an enhanced power factor frontend. The traditional diode that is at the source end is omitted in the proposed design using the conventional power factor improvement inverter. The inverter has its parameters closer to the configuration of a basic push pull converter. The above-mentioned converter works with the phenomenon of electric vehicle battery control. Two modes of operation are incorporated out of which the former one is constant current mode and the latter is constant voltage mode. To obtain the desired regulation of DC voltage at the point of coupling and also to improve the operational efficiency to unity power factor, the proposed Landsman converter is operated using a single sensed individual. This method yields improved power quality, less harmonics in comparison with a conventional one. A prototype is constructed and tested by charging a 48V electric vehicle battery of 100Ah size under the transients in input voltage to display the proposed charger to an IEC61000-32 standard. All the cases are said to be satisfied by performance of the charger.

scholarly journals Control of a battery charger for electric vehicles with unity power factor

2021 ◽  
Vol 2 (1) ◽  
pp. 32-44
Author(s):  
Federico M. Serra ◽  
Cristian H. De Angelo
Keyword(s):  
Electric Vehicles ◽  
Power Factor ◽  
Closed Loop ◽  
Constant Current ◽  
Nonlinear Controller ◽  
Battery Charger ◽  
Unity Power Factor ◽  
Single Model ◽  
Electric Vehicle Battery ◽  
Battery Bank

A nonlinear controller for an electric vehicle battery charger is proposed in this work. The controller allows charging the battery bank with constant current and constant voltage charging profile, while ensuring unity power factor and low distortion in the grid current. A single model is made for the complete system and the controller is designed using interconnection and damping assignment. The proposed controller ensures the closed-loop stability and allows decoupling the system avoiding disturbances in the electric grid and battery bank. The proposal is validated with simulation results.

scholarly journals A high efficiency and high speed charge of Li-Ion battery charger interface using switching-based technique in 180 nm CMOS technology

2021 ◽  
Vol 12 (1) ◽  
pp. 374
Author(s):  
Mustapha El Alaoui ◽  
Fouad Farah ◽  
Karim El khadiri ◽  
Ahmed Tahiri ◽  
Rachid El Alami ◽  
...  
Keyword(s):  
High Speed ◽  
High Efficiency ◽  
Current Mode ◽  
Input Voltage ◽  
Cmos Technology ◽  
Constant Current ◽  
Li Ion Battery ◽  
Battery Charger ◽  
Low Area ◽  
Li Ion

In this work, the design and analysis of new Li-Ion battery charger interface using the switching-based technique is proposed for high efficiency, high speed charge and low area. The high efficiency, the lower size area and the fast charge are the more important norms of the proposed Li-Ion battery charger interface. The battery charging is completed passes to each charging mode: The first mode is the trickle charge mode (TC), the second mode is the constant current mode (CC) and the last mode is the constant voltage mode (CV), in thirty three minutes. The new Li-Ion battery charger interface is designed, simulated and layouted in Cadence software using TSCM 180 nm CMOS technology. With an input voltage V<sub>IN</sub> = 4.5 V, the output battery voltage (V<sub>BAT</sub>) may range from 2.7 V to 4.2 V and the maximum charging battery current (I<sub>BAT</sub>) is 1.7 A. The peak efficiency reaches 97% and the total area is only 0.03mm<sup>2</sup> .

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