scholarly journals Comparison of Coupling Coils for Static Inductive Power-Transfer Systems Taking into Account Sources of Uncertainty

2021 ◽  
Vol 13 (11) ◽  
pp. 6324
Author(s):  
Yao Pei ◽  
Yann Le Le Bihan ◽  
Mohamed Bensetti ◽  
Lionel Pichon
Keyword(s):  
Transmission Efficiency ◽  
Mutual Inductance ◽  
Influential Factor ◽  
Power Transfer ◽  
Inductive Power Transfer ◽  
Sources Of Uncertainty ◽  
Sparse Polynomial ◽  
The Relationship ◽  
Maximum Transmission ◽  
Inductive Power

The present work aims at comparing different coupling coils by taking into account sources of uncertainty for static inductive power-transfer (SIPT) systems. Due to the maximum transmission efficiency for the SIPT system related to the mutual inductance between coils, the key point here is to make use of a sparse polynomial chaos expansion (PCE) method to analyze the mutual inductance between the transmitter and the receiver. A fast postprocess-sensitivity analysis allowed the identification of which source of uncertainty was the most influential factor to the mutual inductance for different coupling coils. Furthermore, in view of the relationship between the maximum transmission efficiency and the ratio of the length of wires of a coil and the mutual inductance, circular coupling coils should be recommended for SIPT systems.

Analysis of the Mutual Inductance of Planar-Lumped Inductive Power Transfer Systems

2013 ◽  
Vol 60 (1) ◽  
pp. 410-420 ◽  
Author(s):  
J. Acero ◽  
C. Carretero ◽  
I. Lope ◽  
R. Alonso ◽  
O. Lucia ◽  
...  
Keyword(s):  
Mutual Inductance ◽  
Power Transfer ◽  
Inductive Power Transfer ◽  
Inductive Power

Design of Inductive Power Transfer System With a Behavior of Voltage Source in Open-Loop Considering Wide Mutual Inductance Variation

2020 ◽  
Vol 35 (11) ◽  
pp. 11453-11462
Author(s):  
Alberto Delgado ◽  
Nicolas Alonso Requena ◽  
Regina Ramos ◽  
Jesus Angel Oliver ◽  
Pedro Alou ◽  
...  
Keyword(s):  
Mutual Inductance ◽  
Open Loop ◽  
Voltage Source ◽  
Transfer System ◽  
Power Transfer ◽  
Inductive Power Transfer ◽  
Inductive Power

scholarly journals A brief review: basic coil designs for inductive power transfer

2020 ◽  
Vol 20 (3) ◽  
pp. 1703
Author(s):  
Nadia Nazieha Nanda ◽  
Siti Hajar Yusoff ◽  
Siti Fauziah Toha ◽  
Nurul Fadzlin Hasbullah ◽  
Amelia Shafina Roszaidie
Keyword(s):  
Power Transmission ◽  
Transmission Efficiency ◽  
Power Transfer ◽  
Spiral Coil ◽  
Inductive Power Transfer ◽  
Design Concepts ◽  
Charging System ◽  
Coil Geometry ◽  
Dynamic Charging ◽  
Inductive Power

The inductive power transfer (IPT) has contributed to the fast growth of the electric vehicle (EV) market. The technology to recharge the EV battery has attracted the attention of many researchers and car manufacturers in developing green transportation. In IPT charging system, the coil design is indispensable in enhancing the EV battery charging process performance. This paper starts by describing the two charging techniques; static charging and dynamic charging before further presents the IPT system descriptions. Afterwards, this paper describes a brief review of coil designs which discusses the critical factors that affect the power transmission efficiency (PTE) including their basic designs, design concepts and features merits. The discussions on the basic coil designs for IPT are of the circular spiral coil (CSC), square coil (SC), rectangular coil (RC), and double-D coil (DDC). Furthermore, the significant advantages and limitations of each research on different geometries are analyzed and discussed in this paper. Finally, this paper evaluates some essential aspects that influence the coil geometry designs in practical.

scholarly journals Dish-Shape Magnetic Flux Concentrator for Inductive Power Transfer Systems

2020 ◽  
pp. 455-461
Author(s):  
Marwan H. Mohammed ◽  
◽  
Yasir M. Y. Ameen ◽  
Ahmed A. S. Mohamed
Keyword(s):  
Magnetic Field ◽  
Magnetic Flux ◽  
Power Transmission ◽  
Three Dimensional ◽  
Transmission Efficiency ◽  
Power Transfer ◽  
Element Analysis ◽  
Inductive Power Transfer ◽  
Three Dimensional Finite Element ◽  
Inductive Power

Recently, safety concerns related to electro-magnetic fields (EMFs) in inductive power transfer (IPT) systems for electric vehicles applications are pointed out. Magnetic flux concentrators are commonly used in the system to direct magnetic field lines and enhance the power transfer capability and efficiency. This article explores the performance of an IPT system for two different shapes of magnetic flux concentrators in terms of magnetic field distribution and power transmission efficiency. The dish-shape and plate-shape flux concentrators are examined and compared with a coreless IPT system. A simulation study based on three-dimensional finite-element analysis is carried out to design the magnetic couplers and analyze the IPT system’s performance. The simulation results are verified analytically and good matches are achieved.

scholarly journals Effect of tuning capacitance of passive power repeaters on power transfer capability of inductive power transfer systems

2018 ◽  
Vol 5 (2) ◽  
pp. 97-104
Author(s):  
Rong Hua ◽  
Aiguo Patrick Hu
Keyword(s):  
Output Power ◽  
Secondary Coil ◽  
Power Transfer ◽  
Primary Coil ◽  
Inductive Power Transfer ◽  
Optimal Tuning ◽  
Transfer Capability ◽  
Passive Power ◽  
The Relationship ◽  
Inductive Power

Power repeaters are used to extend the power transfer range or enhance the power transfer capability of Inductive Power Transfer (IPT) systems, but how to tune the power repeaters to improve the system power transfer performance remains an unsolved problem. In this paper, studies of the effect of the tuning capacitance of the power repeater of an IPT system on the power transfer capability are presented. A theoretical model is established to analyze the output power of the system with the primary coil and secondary coil tuned at a nominal resonant frequency, and a passive power repeater placed in between. By analyzing the relationship between the tuning capacitance of the power repeater and the output power, a critical tuning capacitance which sets up the boundary between enhancing and reducing the output power is determined, and the optimal tuning capacitances corresponding to the maximum and minimum output power are also obtained. A practical IPT system with a passive power repeater placed at 40, 80, and 104 mm from the primary coil is built. It has shown that the practically measured critical capacitance and the optimal tuning capacitance for maximum power transfer are in good agreement with the analytical results.

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