Shielding Sensor Coil to Reduce the Leakage Magnetic Field and Detect the Receiver Position in Wireless Power Transfer System for Electric Vehicle
This paper proposes a shielding sensor (SS) coil to solve the misalignment issue and the leakage magnetic field issue of the wireless power transfer (WPT) system for electric vehicles (EVs). The misalignment issue and leakage magnetic field issue must be solved because they can cause problems with p...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-03-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/15/7/2493 |
| _version_ | 1827623731587973120 |
|---|---|
| author | Seokhyeon Son Seongho Woo Haerim Kim Jangyong Ahn Sungryul Huh Sanguk Lee Seungyoung Ahn |
| author_facet | Seokhyeon Son Seongho Woo Haerim Kim Jangyong Ahn Sungryul Huh Sanguk Lee Seungyoung Ahn |
| author_sort | Seokhyeon Son |
| collection | DOAJ |
| description | This paper proposes a shielding sensor (SS) coil to solve the misalignment issue and the leakage magnetic field issue of the wireless power transfer (WPT) system for electric vehicles (EVs). The misalignment issue and leakage magnetic field issue must be solved because they can cause problems with power transfer efficiency reduction and electronic device malfunction. To solve these problems, the proposed SS coils are located over the Tx coil. The newly created mutual inductance between the Tx coil and the SS coil is used to detect the misalignment of the receiver in the Tx coil. In addition, the current phase of the SS coil is adjusted through impedance control of the SS coil to reduce the leakage magnetic field. The proposed SS coils were applied to the standard SAE J2954 model for the wireless charging of an EV. The WPT3/Z2 model of SAE J2954 with output power of 10 kW was simulated to compare the shielding effect according to the power transfer efficiency, and it was confirmed that a shielding effect of 76% was shown under the condition of a 3% reduction in the power transfer efficiency. In addition, the occurrence and direction of the misalignment between the receiver and the Tx coil were confirmed by using the tendency of mutual inductance between each SS coil and the Tx coil. In addition, as in the simulation result, the shielding effect and tendency were confirmed in an experiment conducted with the output power downscaled to 500 W. |
| first_indexed | 2024-03-09T11:54:48Z |
| format | Article |
| id | doaj.art-bf75291678be4eb9bacfb58cea843e45 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T11:54:48Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-bf75291678be4eb9bacfb58cea843e452023-11-30T23:10:56ZengMDPI AGEnergies1996-10732022-03-01157249310.3390/en15072493Shielding Sensor Coil to Reduce the Leakage Magnetic Field and Detect the Receiver Position in Wireless Power Transfer System for Electric VehicleSeokhyeon Son0Seongho Woo1Haerim Kim2Jangyong Ahn3Sungryul Huh4Sanguk Lee5Seungyoung Ahn6Division of Future Vehicle, Korea Advanced Institute of Science and Technology, Daejeon 34051, KoreaThe Cho Chun Shik Graduate School of Green Transportation, Korea Advanced Institute of Science and Technology, Daejeon 34051, KoreaThe Cho Chun Shik Graduate School of Green Transportation, Korea Advanced Institute of Science and Technology, Daejeon 34051, KoreaThe Cho Chun Shik Graduate School of Green Transportation, Korea Advanced Institute of Science and Technology, Daejeon 34051, KoreaThe Cho Chun Shik Graduate School of Green Transportation, Korea Advanced Institute of Science and Technology, Daejeon 34051, KoreaThe Cho Chun Shik Graduate School of Green Transportation, Korea Advanced Institute of Science and Technology, Daejeon 34051, KoreaThe Cho Chun Shik Graduate School of Green Transportation, Korea Advanced Institute of Science and Technology, Daejeon 34051, KoreaThis paper proposes a shielding sensor (SS) coil to solve the misalignment issue and the leakage magnetic field issue of the wireless power transfer (WPT) system for electric vehicles (EVs). The misalignment issue and leakage magnetic field issue must be solved because they can cause problems with power transfer efficiency reduction and electronic device malfunction. To solve these problems, the proposed SS coils are located over the Tx coil. The newly created mutual inductance between the Tx coil and the SS coil is used to detect the misalignment of the receiver in the Tx coil. In addition, the current phase of the SS coil is adjusted through impedance control of the SS coil to reduce the leakage magnetic field. The proposed SS coils were applied to the standard SAE J2954 model for the wireless charging of an EV. The WPT3/Z2 model of SAE J2954 with output power of 10 kW was simulated to compare the shielding effect according to the power transfer efficiency, and it was confirmed that a shielding effect of 76% was shown under the condition of a 3% reduction in the power transfer efficiency. In addition, the occurrence and direction of the misalignment between the receiver and the Tx coil were confirmed by using the tendency of mutual inductance between each SS coil and the Tx coil. In addition, as in the simulation result, the shielding effect and tendency were confirmed in an experiment conducted with the output power downscaled to 500 W.https://www.mdpi.com/1996-1073/15/7/2493wireless power transferleakage magnetic fieldmisalignmentshieldingposition detectionshielding sensor coil |
| spellingShingle | Seokhyeon Son Seongho Woo Haerim Kim Jangyong Ahn Sungryul Huh Sanguk Lee Seungyoung Ahn Shielding Sensor Coil to Reduce the Leakage Magnetic Field and Detect the Receiver Position in Wireless Power Transfer System for Electric Vehicle Energies wireless power transfer leakage magnetic field misalignment shielding position detection shielding sensor coil |
| title | Shielding Sensor Coil to Reduce the Leakage Magnetic Field and Detect the Receiver Position in Wireless Power Transfer System for Electric Vehicle |
| title_full | Shielding Sensor Coil to Reduce the Leakage Magnetic Field and Detect the Receiver Position in Wireless Power Transfer System for Electric Vehicle |
| title_fullStr | Shielding Sensor Coil to Reduce the Leakage Magnetic Field and Detect the Receiver Position in Wireless Power Transfer System for Electric Vehicle |
| title_full_unstemmed | Shielding Sensor Coil to Reduce the Leakage Magnetic Field and Detect the Receiver Position in Wireless Power Transfer System for Electric Vehicle |
| title_short | Shielding Sensor Coil to Reduce the Leakage Magnetic Field and Detect the Receiver Position in Wireless Power Transfer System for Electric Vehicle |
| title_sort | shielding sensor coil to reduce the leakage magnetic field and detect the receiver position in wireless power transfer system for electric vehicle |
| topic | wireless power transfer leakage magnetic field misalignment shielding position detection shielding sensor coil |
| url | https://www.mdpi.com/1996-1073/15/7/2493 |
| work_keys_str_mv | AT seokhyeonson shieldingsensorcoiltoreducetheleakagemagneticfieldanddetectthereceiverpositioninwirelesspowertransfersystemforelectricvehicle AT seonghowoo shieldingsensorcoiltoreducetheleakagemagneticfieldanddetectthereceiverpositioninwirelesspowertransfersystemforelectricvehicle AT haerimkim shieldingsensorcoiltoreducetheleakagemagneticfieldanddetectthereceiverpositioninwirelesspowertransfersystemforelectricvehicle AT jangyongahn shieldingsensorcoiltoreducetheleakagemagneticfieldanddetectthereceiverpositioninwirelesspowertransfersystemforelectricvehicle AT sungryulhuh shieldingsensorcoiltoreducetheleakagemagneticfieldanddetectthereceiverpositioninwirelesspowertransfersystemforelectricvehicle AT sanguklee shieldingsensorcoiltoreducetheleakagemagneticfieldanddetectthereceiverpositioninwirelesspowertransfersystemforelectricvehicle AT seungyoungahn shieldingsensorcoiltoreducetheleakagemagneticfieldanddetectthereceiverpositioninwirelesspowertransfersystemforelectricvehicle |