scholarly journals Conceptual study on Grid-to-Vehicle (G2V) wireless power transfer using single-phase matrix converter

2019 ◽  
Vol 10 (3) ◽  
pp. 1382
Author(s):  
Muhammad Qusyairi Iqbal Mohd Zamani ◽  
Rahimi Baharom ◽  
Dalina Johari
Keyword(s):  
Electric Vehicle ◽  
Single Phase ◽  
Wireless Power Transfer ◽  
Matrix Converter ◽  
Switching Frequency ◽  
Receiver Coil ◽  
Power Transfer ◽  
Wireless Power ◽  
Charging System ◽  
Conceptual Study

<span>This paper presents the conceptual study on grid-to-electric vehicle (G2V) wireless power transfer (WPT) using Single Phase Matrix Converter (SPMC). In this work, the SPMC is used as a direct AC to AC converter to convert the input supply voltage at 50 Hz frequency to the output of 20 kHz to meet the WPT switching frequency operation of the transmitter and receiver coils. The high frequency AC voltage of the receiver coil is then rectified to a DC form by using SPMC. Through the proposed system, the battery of an electric car can be charged wirelessly, thus removing the annoying wires of the conventional electric vehicle charging system. The reduction in size of the charging system, power losses and optimum efficiency are among the advantages of the proposed system. MATLAB/Simulink (MLS) has been used to simulate the proposed model. Selected simulation result are presented to verify the proposed work.</span>

scholarly journals Effect of Coil Structure on the Efficiency of Wireless Power Transfer System

2019 ◽  
Vol 9 (2) ◽  
pp. 3387-3392
Keyword(s):  
Wireless Power Transfer ◽  
Receiver Coil ◽  
Transfer System ◽  
Wireless Charging ◽  
Power Transfer ◽  
Wireless Power ◽  
Charging System ◽  
Coil Structure ◽  
Power Transfer Efficiency ◽  
Wireless Power Transfer System

A typical magnetic resonance based wireless power transfer (WPT) system comprises a transmitter coil and an embedded receiver coil used for wireless charging of the electrical and electronics devices. It has been investigated that the coil structure influence the power transfer efficiency of the wireless charging system .The investigations have been carried out in order to determine a suitable coil type and geometry so as to achieve higher efficiency of a wireless power transfer system. The present investigation will afford the design strategy for an efficient wireless charging system .

scholarly journals Wireless power transfer (WPT) system for an electric vehicle (EV): how to shield the car from the magnetic field generated by two planar coils

2017 ◽  
Vol 5 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Tommaso Campi ◽  
Silvano Cruciani ◽  
Valerio De Santis ◽  
Francesca Maradei ◽  
Mauro Feliziani
Keyword(s):  
Magnetic Field ◽  
Electric Vehicle ◽  
Wireless Power Transfer ◽  
Power Transfer ◽  
Automotive Applications ◽  
Wireless Power ◽  
Safety Standards ◽  
Charging System ◽  
Weak Points ◽  
The Magnetic Field

This paper deals with the shielding of the magnetic field generated by two planar coils of a wireless power transfer (WPT) system at the frequency of tens of kilohertz used in automotive applications. Different shielding techniques using conductive and magnetic materials are examined and discussed highlighting strong and weak points of each other. Finally, the proposed shielding configuration consisting of a combined conductive and magnetic material is applied to model an electric vehicle equipped with a WPT charging system. With this configuration, compliance with the electromagnetic field safety standards can be achieved inside (passengers) or near (pedestrian) the car.

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