This research presents a novel wireless power transmission (WPT) model utilizing Lenz coils to effectively power multiple loads simultaneously. The increasing demand for efficient energy transfer in various applications, such as consumer electronics and medical devices, necessitates innovative solutions to enhance the performance of WPT systems. Through a series of experimental setups and simulations, we demonstrate that integrating Lenz coils significantly enhances coupling efficiency and reduces electromagnetic interference, leading to more reliable power delivery across multiple devices. The results indicate that our approach not only optimizes energy transfer but also addresses challenges associated with load variation and interference in WPT systems. This work provides a promising pathway toward sustainable and efficient wireless energy solutions, paving the way for future advancements in the field of wireless power transmission. The use of Wireless Power Transfer (WPT) technology in consumer gadgets, electric cars, and medicinal implants has drawn a lot of interest. Effectively distributing power to several loads with different power needs is still difficult, though. A calibrated WPT system that can adjust to various loads while retaining high efficiency is presented in this research. To provide the best possible power delivery, the system uses adaptive frequency tuning and dynamic impedance matching. The system's ability to manage different load circumstances while reducing energy losses is demonstrated by experimental results.

Keywords:Calibration, Coupling, Efficiency, Inverter, Loads, Power Conversion, Power Converters, Wireless Power Transmission.

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1. Narayanamoorthi R, Juliet AV, Chokkalingam B. Cross interference minimization and simultaneous wireless power transfer to multiple frequency loads using frequency bifurcation approach. IEEE Transactions on Power Electronics. 2019 Feb 10;34(11):10898-909.
2. Zhang, T. Lu, Z. Zhao, F. He, K. Chen and L. Yuan, "Selective Wireless Power Transfer to Multiple Loads Using Receivers of Different Resonant Frequencies," in IEEE Transactions on Power Electronics, vol. 30, no. 11, pp. 6001-6005, Nov. 2015, doi: 10.1109/TPEL.2014.2347966.
3. Zhang, T. Lu, Z. Zhao, K. Chen, F. He and L. Yuan, "Wireless Power Transfer to Multiple Loads Over Various Distances Using Relay Resonators," in IEEE Microwave and Wireless Components Letters, vol. 25, no. 5, pp. 337-339, May 2015, doi: 10.1109/LMWC.2015.2409776.
4. Chwei-Sen Wang, O. H. Stielau and G. A. Covic, "Design considerations for a contactless electric vehicle battery charger," in IEEE Transactions on Industrial Electronics, vol. 52, no. 5, pp. 1308-1314, Oct. 2005, doi: 10.1109/TIE.2005.855672.
5. Minnaert, F. Mastri, A. Costanzo, M. Mongiardo and N. Stevens, "Optimizing the Power Output for a Capacitive Wireless Power Transfer System with N receivers," 2019 IEEE Wireless Power Transfer Conference (WPTC), London, UK, 2019, pp. 351-354, doi: 10.1109/WPTC45513.2019.9055678.
6. Zhou et al., "An Optimized Multi-load Wireless Power Transfer System with Constant Load Currents," 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia), Busan, Korea (South), 2019, pp. 1-7, doi: 10.23919/ICPE2019-ECCEAsia42246.2019.8796490.
7. Zhou, Z. Deng, C. Cheng, W. Li, F. Li and C. Mi, "A Wireless Power Transfer System with Multiple Constant Current and Constant Voltage Outputs," 2019 IEEE Energy Conversion Congress and Exposition (ECCE), Baltimore, MD, USA, 2019, pp. 4976-4981, doi: 10.1109/ECCE.2019.8912628.
8. Cheng, Z. Zhou, W. Li, C. Zhu, Z. Deng and C. C. Mi, "A Multi-Load Wireless Power Transfer System With Series-Parallel-Series Compensation," in IEEE Transactions on Power Electronics, vol. 34, no. 8, pp. 7126-7130, Aug. 2019, doi: 10.1109/TPEL.2019.2895598.
9. Kusaka, K. Orikawa, J. -i. Itoh, K. Morita and K. Hirao, "Isolation system with wireless power transfer for multiple gate driver supplies of a medium voltage inverter," 2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA), Hiroshima, Japan, 2014, pp. 191-198, doi: 10.1109/IPEC.2014.6869579.
10. Kan, F. Lu, T. -D. Nguyen, P. P. Mercier and C. C. Mi, "Integrated Coil Design for EV Wireless Charging Systems Using LCC Compensation Topology," in IEEE Transactions on Power Electronics, vol. 33, no. 11, pp. 9231-9241, Nov. 2018, doi: 10.1109/TPEL.2018.2794448.
11. Fu, H. Yin, M. Liu, Y. Wang and C. Ma, "A 6.78 MHz Multiple-Receiver Wireless Power Transfer System With Constant Output Voltage and Optimum Efficiency," in IEEE Transactions on Power Electronics, vol. 33, no. 6, pp. 5330-5340, June 2018, doi: 10.1109/TPEL.2017.2726349.
12. Van Mulders, J., Delabie, D., Lecluyse, C., Buyle, C., Callebaut, G., Van der Perre, L., & De Strycker, L. (2022). Wireless Power Transfer: Systems, Circuits, Standards, and Use Cases. Sensors, 22(15), 5573. https://doi.org/10.3390/s22155573
13. Shinohara, "History and Innovation of Wireless Power Transfer via Microwaves," in IEEE Journal of Microwaves, vol. 1, no. 1, pp. 218-228, Jan. 2021, doi: 10.1109/JMW.2020.3030896.
14. A. Ullah, R. Keshavarz, M. Abolhasan, J. Lipman, K. P. Esselle and N. Shariati, "A Review on Antenna Technologies for Ambient RF Energy Harvesting and Wireless Power Transfer: Designs, Challenges and Applications," in IEEE Access, vol. 10, pp. 17231-17267, 2022, doi: 10.1109/ACCESS.2022.3149276.

This research presents a novel wireless power transmission (WPT) model utilizing Lenz coils to effectively power multiple loads simultaneously. The increasing demand for efficient energy transfer in various applications, such as consumer electronics and medical devices, necessitates innovative solutions to enhance the performance of WPT systems. Through a series of experimental setups and simulations, we demonstrate that integrating Lenz coils significantly enhances coupling efficiency and reduces electromagnetic interference, leading to more reliable power delivery across multiple devices. The results indicate that our approach not only optimizes energy transfer but also addresses challenges associated with load variation and interference in WPT systems. This work provides a promising pathway toward sustainable and efficient wireless energy solutions, paving the way for future advancements in the field of wireless power transmission. The use of Wireless Power Transfer (WPT) technology in consumer gadgets, electric cars, and medicinal implants has drawn a lot of interest. Effectively distributing power to several loads with different power needs is still difficult, though. A calibrated WPT system that can adjust to various loads while retaining high efficiency is presented in this research. To provide the best possible power delivery, the system uses adaptive frequency tuning and dynamic impedance matching. The system's ability to manage different load circumstances while reducing energy losses is demonstrated by experimental results.

Keywords:Calibration, Coupling, Efficiency, Inverter, Loads, Power Conversion, Power Converters, Wireless Power Transmission.

🔒 This is a subscription article

Full text is available to subscribers and institutional members. Please choose an option below to access it.

1. Narayanamoorthi R, Juliet AV, Chokkalingam B. Cross interference minimization and simultaneous wireless power transfer to multiple frequency loads using frequency bifurcation approach. IEEE Transactions on Power Electronics. 2019 Feb 10;34(11):10898-909.
2. Zhang, T. Lu, Z. Zhao, F. He, K. Chen and L. Yuan, "Selective Wireless Power Transfer to Multiple Loads Using Receivers of Different Resonant Frequencies," in IEEE Transactions on Power Electronics, vol. 30, no. 11, pp. 6001-6005, Nov. 2015, doi: 10.1109/TPEL.2014.2347966.
3. Zhang, T. Lu, Z. Zhao, K. Chen, F. He and L. Yuan, "Wireless Power Transfer to Multiple Loads Over Various Distances Using Relay Resonators," in IEEE Microwave and Wireless Components Letters, vol. 25, no. 5, pp. 337-339, May 2015, doi: 10.1109/LMWC.2015.2409776.
4. Chwei-Sen Wang, O. H. Stielau and G. A. Covic, "Design considerations for a contactless electric vehicle battery charger," in IEEE Transactions on Industrial Electronics, vol. 52, no. 5, pp. 1308-1314, Oct. 2005, doi: 10.1109/TIE.2005.855672.
5. Minnaert, F. Mastri, A. Costanzo, M. Mongiardo and N. Stevens, "Optimizing the Power Output for a Capacitive Wireless Power Transfer System with N receivers," 2019 IEEE Wireless Power Transfer Conference (WPTC), London, UK, 2019, pp. 351-354, doi: 10.1109/WPTC45513.2019.9055678.
6. Zhou et al., "An Optimized Multi-load Wireless Power Transfer System with Constant Load Currents," 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia), Busan, Korea (South), 2019, pp. 1-7, doi: 10.23919/ICPE2019-ECCEAsia42246.2019.8796490.
7. Zhou, Z. Deng, C. Cheng, W. Li, F. Li and C. Mi, "A Wireless Power Transfer System with Multiple Constant Current and Constant Voltage Outputs," 2019 IEEE Energy Conversion Congress and Exposition (ECCE), Baltimore, MD, USA, 2019, pp. 4976-4981, doi: 10.1109/ECCE.2019.8912628.
8. Cheng, Z. Zhou, W. Li, C. Zhu, Z. Deng and C. C. Mi, "A Multi-Load Wireless Power Transfer System With Series-Parallel-Series Compensation," in IEEE Transactions on Power Electronics, vol. 34, no. 8, pp. 7126-7130, Aug. 2019, doi: 10.1109/TPEL.2019.2895598.
9. Kusaka, K. Orikawa, J. -i. Itoh, K. Morita and K. Hirao, "Isolation system with wireless power transfer for multiple gate driver supplies of a medium voltage inverter," 2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA), Hiroshima, Japan, 2014, pp. 191-198, doi: 10.1109/IPEC.2014.6869579.
10. Kan, F. Lu, T. -D. Nguyen, P. P. Mercier and C. C. Mi, "Integrated Coil Design for EV Wireless Charging Systems Using LCC Compensation Topology," in IEEE Transactions on Power Electronics, vol. 33, no. 11, pp. 9231-9241, Nov. 2018, doi: 10.1109/TPEL.2018.2794448.
11. Fu, H. Yin, M. Liu, Y. Wang and C. Ma, "A 6.78 MHz Multiple-Receiver Wireless Power Transfer System With Constant Output Voltage and Optimum Efficiency," in IEEE Transactions on Power Electronics, vol. 33, no. 6, pp. 5330-5340, June 2018, doi: 10.1109/TPEL.2017.2726349.
12. Van Mulders, J., Delabie, D., Lecluyse, C., Buyle, C., Callebaut, G., Van der Perre, L., & De Strycker, L. (2022). Wireless Power Transfer: Systems, Circuits, Standards, and Use Cases. Sensors, 22(15), 5573. https://doi.org/10.3390/s22155573
13. Shinohara, "History and Innovation of Wireless Power Transfer via Microwaves," in IEEE Journal of Microwaves, vol. 1, no. 1, pp. 218-228, Jan. 2021, doi: 10.1109/JMW.2020.3030896.
14. A. Ullah, R. Keshavarz, M. Abolhasan, J. Lipman, K. P. Esselle and N. Shariati, "A Review on Antenna Technologies for Ambient RF Energy Harvesting and Wireless Power Transfer: Designs, Challenges and Applications," in IEEE Access, vol. 10, pp. 17231-17267, 2022, doi: 10.1109/ACCESS.2022.3149276.