Enhancing wireless power transfer capability of inductive power transfer system using matrix power repeater

2017 ◽  
Author(s):  
Rong Hua ◽  
Bo Long ◽  
Aiguo Patrick Hu
Keyword(s):  
Wireless Power Transfer ◽  
Transfer System ◽  
Power Transfer ◽  
Wireless Power ◽  
Inductive Power Transfer ◽  
Transfer Capability ◽  
Matrix Power ◽  
Inductive Power

scholarly journals Feasibility Study GaN Transistors Application in the Novel Split-Coils Inductive Power Transfer System with T-Type Inverter

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4535
Author(s):  
Viktor Shevchenko ◽  
Bohdan Pakhaliuk ◽  
Oleksandr Husev ◽  
Oleksandr Veligorskyi ◽  
Deniss Stepins ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Wireless Power Transfer ◽  
Simulation Software ◽  
Circuit Board ◽  
Transfer System ◽  
Power Transfer ◽  
Wireless Power ◽  
Inductive Power Transfer ◽  
Wireless Power Transfer System ◽  
Inductive Power

A promising solution for inductive power transfer and wireless charging is presented on the basis of a single-phase three-level T-type Neutral Point Clamped GaN-based inverter with two coupled transmitting coils. The article focuses on the feasibility study of GaN transistor application in the wireless power transfer system based on the T-type inverter on the primary side. An analysis of power losses in the main components of the system is performed: semiconductors and magnetic elements. System modeling was performed using Power Electronics Simulation Software (PSIM). It is shown that the main losses of the system are static losses in the filter inductor and rectifier diodes on the secondary side, while GaN transistors can be successfully used for the wireless power transfer system. The main features of the Printed Circuit Board (PCB) design of GaN transistors are considered in advance.

scholarly journals Improved Efficiency of Inductive Power Transfer in Misalignment Conditions with Multi Coil Design

2019 ◽  
Vol 8 (1) ◽  
pp. 30-36 ◽  
Author(s):  
P. B. Laksono ◽  
M. Alaydrus
Keyword(s):  
Transfer System ◽  
Power Transfer ◽  
Coil Design ◽  
Wireless Power ◽  
Effective Coupling ◽  
Inductive Power Transfer ◽  
Coupling Structure ◽  
Coil Structure ◽  
Spiral Coils ◽  
Inductive Power

In charging process of electric vehicle, a misalignment between the transmitter (Tx) and receiver (Rx) coupling  structure decreases the efficiency of the wireless power transfer. In inductive power transfer system, misalignment reduces the effective coupling between the Tx and Rx coils. In this work, based on previous multiple coil structures, a new multi coil design in proposed to increase the efficiency of the power transfer. Here, a multi coil structure with two rectangular and four spiral coils is designed with the overall dimension of the coil structure 26.5 cm x 36.5 cm. The measurement shows, that for coil distance below 10.3 cm and a lateral misalignment of maximal 10 cm (27.4%), the efficiency of the designed multi coil structure is better compared to previous coil structures. However for larger coil distance or larger misalignment, the efficiency of the new coil structure deteriorates significantly.

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