TY - JOUR
T1 - Real-time maximum efficiency control in dynamic wireless power transfer system
AU - Kobayashi, Daita
AU - Imura, Takehiro
AU - Hori, Yoichi
N1 - Publisher Copyright:
© 2016 The Institute of Electrical Engineers of Japan.
PY - 2016
Y1 - 2016
N2 - Transmitting efficiency is one of the most important characteristics in dynamic wireless power transfer for electric vehicles. In this paper, a simple and efficient topology for a transmitting system called the DC bus system is introduced.Its simplicity maximizes the potential transmitting efficiency. Moreover, a receiving circuit topology and a maximum efficiency control, which is a method to maximize the transmitting efficiency by controlling the secondary voltage, are proposed. A real-time coupling coefficient estimation method is necessary to calculate the secondary voltage command for the control. A simulation and experimental evaluation of the maximum efficiency control was performed using an experimental setup. The results indicate that it provides a large improvement in efficiency and its implementation in a real dynamic power transfer system for electric vehicles is feasible.
AB - Transmitting efficiency is one of the most important characteristics in dynamic wireless power transfer for electric vehicles. In this paper, a simple and efficient topology for a transmitting system called the DC bus system is introduced.Its simplicity maximizes the potential transmitting efficiency. Moreover, a receiving circuit topology and a maximum efficiency control, which is a method to maximize the transmitting efficiency by controlling the secondary voltage, are proposed. A real-time coupling coefficient estimation method is necessary to calculate the secondary voltage command for the control. A simulation and experimental evaluation of the maximum efficiency control was performed using an experimental setup. The results indicate that it provides a large improvement in efficiency and its implementation in a real dynamic power transfer system for electric vehicles is feasible.
KW - Coupling coefficient estimation
KW - Dynamic wireless power transfer
KW - Electric vehicle
KW - Magnetic resonance coupling
KW - Maximum efficiency control
UR - http://www.scopus.com/inward/record.url?scp=84973455978&partnerID=8YFLogxK
U2 - 10.1541/ieejias.136.425
DO - 10.1541/ieejias.136.425
M3 - Article
AN - SCOPUS:84973455978
SN - 0913-6339
VL - 136
SP - 425
EP - 432
JO - IEEJ Transactions on Industry Applications
JF - IEEJ Transactions on Industry Applications
IS - 6
ER -