On-Line Foreign Object Detection Using Double DD Coils in an Inductive Wireless Power Transfer System
Abstract
:1. Introduction
2. Method Description
3. Mutual Inductance Measurement Using Double DD Coils
3.1. The IPT System Circuit Analysis
3.2. Mutual Inductance Measurement Using DD2 Coils
4. Mutual Inductance Measurement Using 2DDq Coils
5. Foreign Object Detection Method
Foreign Object Detection Using a Rotating Magnetic Field
6. System Description
- A 3D computer-controlled positioning rig;
- An IPT system with the required measuring circuits.
6.1. High-Frequency Inverter
6.2. Primary and Secondary Resonant Circuits
6.3. Synchronous Rectifier
6.4. Voltage Measurement Circuit
7. Measurement Results
7.1. On-Line Coupling Coefficient Measurement Results Using the DD Coil
7.2. On-Line Coupling Coefficient Measurement Results Using the 2DDq Coil
7.3. Foreign Object Detection Results
8. Discussion
9. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Parameter | Value |
---|---|
Input voltage UDC | 15 V |
Input current IDC | 2 A |
Operating frequency fs | 87 kHz |
Inductance LT1 | 45 μH |
Inductance LT2 | 41.6 μH |
Inductance LR1 | 45.1 μH |
Inductance LR2 | 41.8 μH |
Capacitance CT1 | 76.8 nF |
Capacitance CT2 | 84.5 nF |
Capacitance CR1 | 76.9 nF |
Resistance RL | 10.7 Ω |
z (mm) | LT2 (μH) | LR2 (μH) | IT2 (A) | UM (V) | k |
---|---|---|---|---|---|
15.3 | 41.6 | 41.8 | 1.67 | 19.56 | 0.51 |
16.3 | 41.6 | 41.8 | 1.86 | 20.00 | 0.47 |
17.3 | 41.6 | 41.8 | 2.03 | 20.42 | 0.44 |
18.3 | 41.6 | 41.8 | 2.28 | 20.83 | 0.40 |
19.3 | 41.6 | 41.8 | 2.35 | 20.54 | 0.38 |
20.3 | 41.6 | 41.8 | 2.30 | 18.42 | 0.35 |
21.3 | 41.6 | 41.8 | 2.16 | 16.61 | 0.33 |
22.3 | 41.6 | 41.8 | 2.11 | 14.95 | 0.31 |
23.3 | 41.6 | 41.8 | 2.01 | 13.30 | 0.29 |
… | … | … | … | … | … |
55.3 | 41.6 | 41.8 | 0.79 | 0.63 | 0.03 |
z (mm) | LTq (μH) | LRq (μH) | ITq (A) | UM (V) | k |
---|---|---|---|---|---|
15.3 | 43 | 43.1 | 0.76 | 26.39 | 0.53 |
17.3 | 43 | 43.1 | 0.92 | 31.19 | 0.51 |
19.3 | 43 | 43.1 | 1.24 | 38.39 | 0.47 |
21.3 | 43 | 43.1 | 1.84 | 51.22 | 0.42 |
23.3 | 43 | 43.1 | 2.48 | 63.99 | 0.39 |
25.3 | 43 | 43.1 | 2.16 | 52.79 | 0.37 |
27.3 | 43 | 43.1 | 1.76 | 39.99 | 0.34 |
29.3 | 43 | 43.1 | 1.60 | 33.59 | 0.32 |
31.3 | 43 | 43.1 | 1.44 | 27.99 | 0.30 |
… | … | … | … | … | … |
75.30 | 43 | 43.1 | 1.08 | 4.80 | 0.07 |
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Prosen, N.; Milanovič, M.; Domajnko, J. On-Line Foreign Object Detection Using Double DD Coils in an Inductive Wireless Power Transfer System. Sensors 2022, 22, 1637. https://doi.org/10.3390/s22041637
Prosen N, Milanovič M, Domajnko J. On-Line Foreign Object Detection Using Double DD Coils in an Inductive Wireless Power Transfer System. Sensors. 2022; 22(4):1637. https://doi.org/10.3390/s22041637
Chicago/Turabian StyleProsen, Nataša, Miro Milanovič, and Jure Domajnko. 2022. "On-Line Foreign Object Detection Using Double DD Coils in an Inductive Wireless Power Transfer System" Sensors 22, no. 4: 1637. https://doi.org/10.3390/s22041637
APA StyleProsen, N., Milanovič, M., & Domajnko, J. (2022). On-Line Foreign Object Detection Using Double DD Coils in an Inductive Wireless Power Transfer System. Sensors, 22(4), 1637. https://doi.org/10.3390/s22041637