DOI QR코드

DOI QR Code

Wireless power transfer system with aligned two transmitters and one receiver for power distribution system in smart buildings

  • You, Hyun‑Woo (Department of Electronic Engineering, Hanbat National University) ;
  • Park, Jung‑Hoon (Department of Applied Artificial Intelligence, Ajou University) ;
  • Lee, Byoung‑Hee (Department of Electronic Engineering, Hanbat National University)
  • Received : 2021.08.18
  • Accepted : 2021.12.22
  • Published : 2022.03.20

Abstract

Intelligent houses and skyscrapers require many electronic devices for the smart control of building conditions. These devices make the power distribution system of buildings too complicated and expensive. Wireless power transfer (WPT) systems are one of the more promising candidates that simplifies power distribution systems. WPT systems via magnetic resonance coupling (MRC) can transmit power further and broader than WPT systems via inductive coupling. Moreover, recent architectures use an H-beam structure due to its durability and recyclability. Since the H-beam structure can be used as a guidance for WPT systems, the performance of the WPT system can be improved. Thus, this paper proposes a WPT system via MRC with aligned two transmitters (2-Txs) and one receiver to simplify the power distribution systems in smart buildings and to improve the power capability of WPT systems. The characteristics of a WPT system with 2-Txs according to variation of coil arrangement, coil size, and distance imbalance are investigated and verified by mathematical analysis and experimental results. In addition, a phase-shift control method is adopted and experimentally verified to control the output power without an additional power conversion circuit.

Keywords

Acknowledgement

This research was funded by the Korea Electric Power Corporation (Grant Number: R18XA06-66).

References

  1. So, P.-H., You, H.-W., An, J.-S., Lee, B.-H., Yi, K.-H.: Characteristics of wireless power transfer system according to the shape of magnetic path. In: Proc. 8th international conference on renewable energy research and applications, pp. 280-282 (2019)
  2. Hui, S.Y.R., Zhong, W., Lee, C.K.: A critical review of recent progress in mid-range wireless power transfer. IEEE Trans. Power Electron. 29(9), 4500-4511 (2014) https://doi.org/10.1109/TPEL.2013.2249670
  3. Hui, S.R.: Past, present and future trends of non-radiative wireless power transfer. CPSS Trans. Power Electron. Appl. 1(1), 83-91 (2016). https://doi.org/10.24295/CPSSTPEA.2016.00008
  4. Kurs, A., Karalis, A., Mofatt, R., Joannopoulos, J.D., Fisher, P., Soljacic, M.: Wireless power transfer via strongly coupled magnetic resonances. Science 317(5834), 83-86 (2007) https://doi.org/10.1126/science.1143254
  5. Johari, R., Krogmeier, V., David, J.: Analysis and practical considerations in implementing multiple transmitters and receivers for wireless power transfer via coupled magnetic resonance. IEEE Trans. Power Electron. 61(4), 1774-1783 (2014)
  6. Tan, L., Guo, J., Liu, H., Wang, W., Yan, C., Zhang, M.: Coordinated source control for output power stabilization and efficiency optimization in WPT systems. IEEE Trans. Power Electron. 33(4), 3613-3621 (2018) https://doi.org/10.1109/tpel.2017.2710088
  7. Jayathurathnage, P., Liu, F.: Optimal excitation of multi-transmitter wireless power transfer system without receiver sensors. In: Proc. IEEE PELS workshop on emerging technologies: wireless power transfer (WoW), pp. 25-28 (2019)
  8. Kim, D.-H., Ahn, D.-J.: Maximum efficiency point tracking for multiple-transmitter wireless power transfer. IEEE Trans. Power Electron. 35(11), 11391-11400 (2020) https://doi.org/10.1109/tpel.2019.2919293
  9. Lee, K.-S., Cho, D.-H.: Diversity analysis of multiple transmitters in wireless power transfer system. IEEE Trans. Power Electron. 49(6), 2946-2952 (2013)
  10. Zhang, J., Cheng, C., Chen, K., Wang, F., Gao, Y.: Analysis of multiple-TX WPT systems using KVL and RX-side RLT. IET Microw. Antennas Propag. 13(12), 1997-2004 (2019) https://doi.org/10.1049/iet-map.2018.5698
  11. Wang, B., Nishino, T., Teo, K.H.: Wireless power transmission efficiency enhancement with metamaterials. In: Proc. IEEE int. inform. techn. syst., pp. 1-4 (2010)
  12. Kim, J., Kim, D.-H., Park, Y.-J.: Free-positioning wireless power transfer to multiple devices using a planar transmitting coil and switchable impedance matching network. IEEE Trans. Microw. Theory Tech. 64(11), 3714-3722 (2016) https://doi.org/10.1109/TMTT.2016.2608802
  13. Mirbozorgi, S., Bahrami, H., Sawan, M., Gosselin, B.: A smart multi coil inductively coupled array for wireless power transmission. IEEE Trans. Ind. Electron. 61(11), 6061-6070 (2014) https://doi.org/10.1109/TIE.2014.2308138
  14. Jolani, F., Yu, Y.Q., Chen, Z.: A planar magnetically-coupled resonant wireless power transfer using array of resonators for efficiency enhancement. In: Proc. IEEE int. microwave symposium, pp. 1-4 (2015)
  15. Casanova, J., Low, Z., Lin, J., Tseng, R.: Transmitting coil achieving uniform magnetic field distribution for planar wireless power transfer system. In: Proc. radio wireless symposium, pp. 530-533 (2009)
  16. Hui, S.: Planar wireless charging technology for portable electronic products and Qi. Proc. IEEE 101(6), 1290-1301 (2013) https://doi.org/10.1109/JPROC.2013.2246531
  17. Zhong, W., Liu, X., Hui, S.: A novel single-layer winding array and receiver coil structure for contactless battery charging systems with free positioning and localized charging features. IEEE Trans. Ind. Electron. 58(9), 4136-4144 (2011) https://doi.org/10.1109/TIE.2010.2098379
  18. Yi, K.-H.: 6.78 MHz capacitive coupling wireless power transfer system. J. Power Electron. 15(4), 987-993 (2015) https://doi.org/10.6113/JPE.2015.15.4.987
  19. Chen, W., Liu, J., Chen, S., Zhang, L.: Energy shaping control for wireless power transfer system in automatic guided vehicle. Energies 13, 2959 (2020) https://doi.org/10.3390/en13112959
  20. Jang, Y.-J., Han, H.-K., Baek, J.-I., Moon, G.-W., Kim, J.-M., Sohn, H.: Novel multi-coil resonator design for wireless power transfer through reinforced concrete structure with rebar array. In: Proc. international future energy electronics conference and ECCE Asia, pp. 2238-2243 (2017)
  21. Kim, J., Jeong, J.: Range-adaptive wireless power transfer using multiloop and tunable matching techniques. IEEE Trans. Ind. Electron. 15(62), 6233-6241 (2015)
  22. Brizi, D., Stang, J.P., Monorchio, A., Lazzi, G.: On the design of planar arrays of nonresonant coils for tunable wireless power transfer applications. IEEE Trans. Microw. Theory Tech. 68(9), 3814-3822 (2020) https://doi.org/10.1109/tmtt.2020.2983145
  23. Cho, J.-H., Kim, Y.-J., Lee, B.-H.: Maximizing transfer efficiency with an adaptive wireless power transfer system for variable load applications. Energies 14, 1417 (2021) https://doi.org/10.3390/en14051417