Shielding Sensor Coil to Reduce the Leakage Magnetic Field and Detect the Receiver Position in Wireless Power Transfer System for Electric Vehicle
<p>Principle of the inductive power transfer method.</p> "> Figure 2
<p>WPT system to which SS coils for reducing a leakage magnetic field and detecting a receiver position is applied.</p> "> Figure 3
<p>Equivalent circuit of the proposed WPT system before the receiver enters.</p> "> Figure 4
<p>Equivalent circuit of the proposed WPT system with the receiver.</p> "> Figure 5
<p>Current phase of the SS coil according to the relationship between the resonant frequency of the SS coil and the operating frequency of the system. (<b>a</b>) Capacitive region (operating frequency < resonance frequency of the SS coil). (<b>b</b>) Inductive region (operating frequency > resonance frequency of the SS coil).</p> "> Figure 6
<p>Induced voltage and current phases of the SS coil whose impedance has been adjusted to operate in an inductive region for leakage magnetic field shielding.</p> "> Figure 7
<p>SAE J2954 WPT3/Z2 model with the SS coils.</p> "> Figure 8
<p>Simulation method of the position-detection performance.</p> "> Figure 9
<p>Tendency of the mutual inductance difference of each SS coil according to the position of the receiver. (<b>a</b>) SS coil 1. (<b>b</b>) SS coil 2. (<b>c</b>) SS coil 3. (<b>d</b>) SS coil 4.</p> "> Figure 10
<p>Mutual inductance difference of each SS coil according to the position of the receiver. (<b>a</b>) Receiver position: (−100,50). (<b>b</b>) Receiver position: (0,0). (<b>c</b>) Receiver position: (150,0).</p> "> Figure 11
<p>SAE J2954 WPT3/Z2 simulation circuit to which SS coils are applied.</p> "> Figure 12
<p>Impedance magnitude at the operating frequency according to the resonance frequency of the SS coil.</p> "> Figure 13
<p>Comparison of the leakage magnetic field.</p> "> Figure 14
<p>Leakage magnetic field measurement line for numerical comparison.</p> "> Figure 15
<p>Comparison according to the model. (<b>a</b>) Comparison of the leakage magnetic field. (<b>b</b>) Comparison of the shielding effect.</p> "> Figure 16
<p>Experimental setup for the measurement using the SAE J2954 model.</p> "> Figure 17
<p>Experimental results of the position-detection performance: (<b>a</b>) Receiver position: (−100,50); (<b>b</b>) Receiver position: (0,0); (<b>c</b>) Receiver position: (150,0).</p> "> Figure 18
<p>Experimental results of the leakage magnetic field reduction performance: (<b>a</b>) Comparison of the leakage magnetic field. (<b>b</b>) Comparison of the shielding effect.</p> ">
Abstract
:1. Introduction
2. Proposed Shielding Sensor Coil to Reduce the Leakage Magnetic Field and Detect the Receiver Position in a Wireless Power Transfer System
3. Application and Simulation of the Shielding Sensor Coil
3.1. Application of a Shielding Sensor Coil to the SAE J2954 Standard
3.2. Simulation Verification of the Shielding Sensor Coil
3.2.1. Simulation of the Position-Detection Performance
3.2.2. Simulation of the Leakage Magnetic Field Reduction Performance
4. Experiment of Shielding Sensor Coil
4.1. Experimental Setup
4.2. Experiment of Position-Detection Performance
4.3. Experiment of Leakage Magnetic Field Reduction Performance
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Parameter | Value |
---|---|
Tx Turns | 8 [turns] |
Rx Turns | 9 [turns] |
SS Turns | 2 [turns] |
Air Gap | 132 [mm] |
Tx | Rx | SS 1 | SS 2 | SS 3 | SS 4 | |
---|---|---|---|---|---|---|
Tx | ||||||
Rx | ||||||
SS 1 | ||||||
SS 2 | ||||||
SS 3 | ||||||
SS 4 |
Parameter | Value |
---|---|
] | |
] | |
] | |
5.3 [Ω] | |
−1.4 [Ω] | |
Operating Frequency | 85 [kHz] |
Reference Model | Proposed Model | |||
---|---|---|---|---|
Case (1) | Case (2) | Case (3) | ||
10 [kW] | ||||
93.24 [%] | 92.12 [%] | 91.31 [%] | 89.96 [%] | |
- |
w/o SS coil | [%] | ||
w/ SS coil | [%] |
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Son, S.; Woo, S.; Kim, H.; Ahn, J.; Huh, S.; Lee, S.; Ahn, S. Shielding Sensor Coil to Reduce the Leakage Magnetic Field and Detect the Receiver Position in Wireless Power Transfer System for Electric Vehicle. Energies 2022, 15, 2493. https://doi.org/10.3390/en15072493
Son S, Woo S, Kim H, Ahn J, Huh S, Lee S, Ahn S. Shielding Sensor Coil to Reduce the Leakage Magnetic Field and Detect the Receiver Position in Wireless Power Transfer System for Electric Vehicle. Energies. 2022; 15(7):2493. https://doi.org/10.3390/en15072493
Chicago/Turabian StyleSon, Seokhyeon, Seongho Woo, Haerim Kim, Jangyong Ahn, Sungryul Huh, Sanguk Lee, and Seungyoung Ahn. 2022. "Shielding Sensor Coil to Reduce the Leakage Magnetic Field and Detect the Receiver Position in Wireless Power Transfer System for Electric Vehicle" Energies 15, no. 7: 2493. https://doi.org/10.3390/en15072493