TY - GEN
T1 - Reducing Coil Characteristics Deterioration by Using Insulated Rebar Testbody in Dynamic Wireless Power Transfer
AU - Matsuo, Kaito
AU - Imura, Takehiro
AU - Hori, Yoichi
AU - Kunigo, Megumu
AU - Shimizu, Shun
AU - Maki, Shunsuke
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In dynamic wireless power transfer (DWPT), it is essential to embed the power transmission coils in the road. Previous studies have reported that the properties deteriorate during embedment in reinforced concrete pavements because of rebar and concrete. In this paper, a reinforced concrete testbody was used to simulate the embedment of the coils in the pavement and to measure the properties of the coils because of the embedment. We propose a method to reduce the deterioration of properties by changing the rebar used in the testbody to be insulated rebar. As a result of measurements with a vector network analyzer (VNA), the use of insulated rebar reduced the Q-value of the coil by about 30 % compared to that of normal rebar. Furthermore, a transmission efficiency of 93.2 % was obtained at an air gap of 170 mm.
AB - In dynamic wireless power transfer (DWPT), it is essential to embed the power transmission coils in the road. Previous studies have reported that the properties deteriorate during embedment in reinforced concrete pavements because of rebar and concrete. In this paper, a reinforced concrete testbody was used to simulate the embedment of the coils in the pavement and to measure the properties of the coils because of the embedment. We propose a method to reduce the deterioration of properties by changing the rebar used in the testbody to be insulated rebar. As a result of measurements with a vector network analyzer (VNA), the use of insulated rebar reduced the Q-value of the coil by about 30 % compared to that of normal rebar. Furthermore, a transmission efficiency of 93.2 % was obtained at an air gap of 170 mm.
KW - Coil embedment
KW - Dynamic Wireless Power Transfer
KW - Reinforced Concrete
KW - Wireless Power Transfer
UR - http://www.scopus.com/inward/record.url?scp=85170645789&partnerID=8YFLogxK
U2 - 10.1109/WPTCE56855.2023.10215738
DO - 10.1109/WPTCE56855.2023.10215738
M3 - Conference contribution
AN - SCOPUS:85170645789
T3 - 2023 IEEE Wireless Power Technology Conference and Expo, WPTCE 2023 - Proceedings
BT - 2023 IEEE Wireless Power Technology Conference and Expo, WPTCE 2023 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE Wireless Power Technology Conference and Expo, WPTCE 2023
Y2 - 4 June 2023 through 8 June 2023
ER -