Dynamic Complex Impedance Tuning Method Using a Multiple-Input DC/DC Converter for Wireless Power Transfer

2018 ◽  
Author(s):  
Takuya Sasatani ◽  
Yoshiaki Narusue ◽  
Yoshihiro Kawahara
Keyword(s):  
Complex Impedance ◽  
Wireless Power Transfer ◽  
Power Transfer ◽  
Wireless Power ◽  
Tuning Method ◽  
Multiple Input

scholarly journals Optimization of Excitation Magnitudes and Phases for Maximum Efficiencies in a MISO Wireless Power Transfer System

2020 ◽  
Vol 20 (1) ◽  
pp. 16-22
Author(s):  
Hyeongwook Lee ◽  
Seunghyun Boo ◽  
Gunyoung Kim ◽  
Bomson Lee
Keyword(s):  
Wireless Power Transfer ◽  
Maximum Efficiency ◽  
Electromagnetic Simulation ◽  
Power Transfer ◽  
Wireless Power ◽  
Algorithm Optimization ◽  
Single Output ◽  
Multiple Input ◽  
Output System ◽  
Wireless Power Transfer System

This paper presents a method for solving receiver misalignment (axial or angular) problems in wireless power transfer systems using a multiple-input single-output system. The optimum magnitudes and phases of the transmitter voltages and receiver load for maximum efficiency are derived in convenient analytical forms when negligible mutual couplings between transmitters. These solutions are validated by genetic algorithm optimization and electromagnetic-simulation results for a design ex-ample of two transmitters and one rotating receiver.

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