Radiative Noise Reduction Technique Using 12 Coils Suitable for High-Power Inductive Power Transfer

2018 ◽  
Author(s):  
Keisuke Kusaka ◽  
Keita Furukawa ◽  
Jun-Ichi Itoh
Keyword(s):  
Noise Reduction ◽  
High Power ◽  
Reduction Technique ◽  
Power Transfer ◽  
Inductive Power Transfer ◽  
Noise Reduction Technique ◽  
Inductive Power

Modular Parallel Multi-Inverter System for High-Power Inductive Power Transfer

2019 ◽  
Vol 34 (10) ◽  
pp. 9422-9434 ◽  
Author(s):  
Qijun Deng ◽  
Pan Sun ◽  
Wenshan Hu ◽  
Dariusz Czarkowski ◽  
Marian K. Kazimierczuk ◽  
...  
Keyword(s):  
High Power ◽  
Power Transfer ◽  
Inductive Power Transfer ◽  
Inductive Power

scholarly journals A Comparative Study of S-S and LCCL-S Compensation Topologies in Inductive Power Transfer Systems for Electric Vehicles

Energies ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1913 ◽  
Author(s):  
Yafei Chen ◽  
Hailong Zhang ◽  
Sung-Jun Park ◽  
Dong-Hee Kim
Keyword(s):  
Comparative Analysis ◽  
Comparative Study ◽  
Electric Vehicles ◽  
High Power ◽  
Power Transfer ◽  
Comparative Result ◽  
Inductive Power Transfer ◽  
Load Variations ◽  
Basic Characteristics ◽  
Inductive Power

In inductive power transfer (IPT) systems, series–series (S-S) and double capacitances and inductances–series (LCCL-S) compensation topologies are widely utilized. In this study, the basic characteristics of S-S and LCCL-S are analyzed and compared in the tuning state. In addition, considering the universality of detuning, and because the two topologies have the same secondary structures, the voltage and current stress on components, input impedances, voltage gains, and output powers of S-S and LCCL-S are mainly analyzed and compared in the detuning state, which is caused by variations in the secondary compensation capacitance. To compare the efficiency of the two topologies and verify the comparative analysis, comparative experiments based on a 2.4-kW IPT experimental prototype are conducted. The comparative result shows that the S-S compensation topology is more sensitive to load variations and less sensitive to secondary compensation capacitance variations than LCCL-S. Both in the tuning and detuning states, the efficiency of the S-S topology is higher in high-power electric vehicle (EV) applications, and the efficiency of LCCL-S is higher in low-power.

scholarly journals Comparative Verification of Radiation Noise Reduction Effect Using Spread Spectrum for Inductive Power Transfer System

2019 ◽  
Vol 10 (2) ◽  
pp. 40
Author(s):  
Keisuke Kusaka ◽  
Kent Inoue ◽  
Jun-ichi Itoh
Keyword(s):  
Noise Reduction ◽  
Spread Spectrum ◽  
Compensation Method ◽  
Power Transfer ◽  
Series Compensation ◽  
Constant Frequency ◽  
Inductive Power Transfer ◽  
Reduction Methods ◽  
Radiation Noise ◽  
Inductive Power

This paper provides a comparative study on radiation noise reduction methods for inductive power transfer systems using spread spectrum. In the spread spectrum methods, the radiation noise is reduced by continuously changing an output frequency of the inverter according to pseudorandom numbers. The effects of the radiation noise reduction are evaluated with the inductive power transfer (IPT) system with series-parallel compensation and series-series compensation. The results show that the peak values of the radiation noise around the fundamental frequency are reduced by 7.8 and 8.1 dBμA in maximum with the series-series compensation method and the series-parallel compensation method, respectively in comparison with the constant frequency operation. From these results, the proposed methods are effective for both the series-series compensation and series-parallel compensation method. Moreover, the efficiency of the IPT system with spread spectrum method is evaluated. The maximum DC-to-DC efficiency with the spread spectrum is 94.1% and 92.0% with the series-series compensation and the series-parallel compensation, respectively.

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