Book contents
- Wireless Power Transfer for Unmanned Aircraft
- Wireless Power Transfer for Unmanned Aircraft
- Copyright page
- Contents
- Acknowledgements
- 1 Fundamentals of Wireless Power Transfer
- 2 Hovering Wireless Charging for UAVs
- 3 Magnetic Coupler Design for Wireless Charging of UAV
- 4 Control for Wireless Charging of UAVs
- 5 Control Scheme based on the PT-Symmetric WPT System
- 6 Charging Range Extension for the PT-Symmetric WPT System
- Index
- References
5 - Control Scheme based on the PT-Symmetric WPT System
Published online by Cambridge University Press: 10 October 2025
Book contents
- Wireless Power Transfer for Unmanned Aircraft
- Wireless Power Transfer for Unmanned Aircraft
- Copyright page
- Contents
- Acknowledgements
- 1 Fundamentals of Wireless Power Transfer
- 2 Hovering Wireless Charging for UAVs
- 3 Magnetic Coupler Design for Wireless Charging of UAV
- 4 Control for Wireless Charging of UAVs
- 5 Control Scheme based on the PT-Symmetric WPT System
- 6 Charging Range Extension for the PT-Symmetric WPT System
- Index
- References
Summary
This chapter introduces control schemes based on the PT-symmetric wireless power transfer (WPT) system. It begins with an overview of PT symmetry and its relevance to WPT, followed by detailed models and analyses based on circuit theory and coupled-mode theory. The chapter explores the output characteristics of PT-symmetric systems and presents control methods for optimizing output power through load identification. Experimental results are provided to validate the proposed control schemes, demonstrating their effectiveness in managing power transfer and enhancing system performance. The chapter highlights the innovative aspects of PT-symmetric WPT and its potential applications.
Keywords
Information
- Type
- Chapter
- Information
- Wireless Power Transfer for Unmanned AircraftFundamentals, Design, and Control, pp. 70 - 95Publisher: Cambridge University PressPrint publication year: 2025
References
Assawaworrarit, S., Yu, X., and Fan, S., ‘Robust wireless power transfer using a nonlinear parity-time-symmetric circuit’, Nature, vol. 546, no. 7658, pp. 387–390, Jun. 2017.Google ScholarPubMed
Zhou, J., Zhang, B., Xiao, W., Qiu, D., and Chen, Y., ‘Nonlinear parity-time-symmetric model for constant efficiency wireless power transfer: application to a drone-in-flight wireless charging platform’, IEEE Trans. Ind. Electron., vol. 66, no. 5, pp. 4097–4107, May 2019.CrossRefGoogle Scholar
Gu, Y., Wang, J., Liang, Z., and Zhang, Z., ‘Mutual-inductance-dynamic-predicted constant current control of LCC-P compensation network for drone wireless in-flight charging’, IEEE Trans. Ind. Electron., vol. 69, no. 12, pp. 12710–12719, Dec. 2022.CrossRefGoogle Scholar
Dai, X., Li, X., Li, Y., and Hu, A. P., ‘Maximum efficiency tracking for wireless power transfer systems with dynamic coupling coefficient estimation’, IEEE Trans. Power Electron., vol. 33, no. 6, pp. 5005–5015, Jun. 2018.CrossRefGoogle Scholar
Hua, Z., Chau, K. T., Han, W., Liu, W., and Ching, T. W., ‘Output-controllable efficiency-optimized wireless power transfer using hybrid modulation’, IEEE Trans. Ind. Electron., vol. 69, no. 5, pp. 4627–4636, May 2022.CrossRefGoogle Scholar
Zhang, Z., Shen, S., Liang, Z., Eder, S. H. K., and Kennel, R., ‘Dynamic-balancing robust current control for wireless drone-in-flight charging’, IEEE Trans. Power Electron., vol. 37, no. 3, pp. 3626–3635, Mar. 2022.CrossRefGoogle Scholar
Chen, K. and Zhang, Z., ‘Rotating-coordinate-based mutual inductance estimation for drone in-flight wireless charging systems’, IEEE Trans. Power Electron., vol. 38, no. 9, pp. 11685–11693, Sept. 2023.CrossRefGoogle Scholar
Gu, Y., Wang, J., Liang, Z., and Zhang, Z., ‘A wireless in-flight charging range extended PT-WPT system using S/single-inductor-double-capacitor compensation network for drones’, IEEE Trans. Power Electron., vol. 38, no. 10, pp. 11847–11858, Oct. 2023.CrossRefGoogle Scholar
Kiani, M. and Ghovanloo, M., ‘The circuit theory behind coupled-mode magnetic resonance-based wireless power transmission’, IEEE Trans. Circuits Syst. I: Reg. Papers, vol. 59, no. 9, pp. 2065–2074, Sept. 2012.Google ScholarPubMed
Gu, Y., Zhu, Q., Jia, L., Li, G., and Zhang, Z., ‘Optimized high-order compensation topology for PT-WPT systems with expanded constant power region’, IEEE Trans. Magn., 2023, doi: 10.1109/TMAG.2023.3287481.CrossRefGoogle Scholar
Rong, C., Zhang, B., Wei, Z., Wu, L., and Shu, X., ‘A wireless power transfer system for spinal cord stimulation based on generalized parity–time symmetry condition’, IEEE Trans. Ind. Appl., vol. 58, no. 1, pp. 1330–1339, Jan.–Feb. 2022.CrossRefGoogle Scholar
Gu, Y., Chen, J., Chang, S., and Zhang, Z., ‘Constant power control against M/R with expanded PT-symmetric range for wireless in-flight charging of drones’, IEEE Trans. Magn., 2023, doi: 10.1109/TMAG.2023.3284826.CrossRefGoogle Scholar
Gu, Y., Wang, J., Liang, Z., and Zhang, Z., ‘Communication-free power control algorithm for drone wireless in-flight charging under dual-disturbance of mutual inductance and load’, IEEE Trans. Ind. Inform., vol. 20, no. 3, pp. 3703–3714, Mar. 2024.CrossRefGoogle Scholar
Huang, R. and Zhang, B., ‘Frequency, impedance characteristics and HF converters of two-coil and four-coil wireless power transfer’, IEEE J. Emerg. Sel. Topics Power Electron., vol. 3, no. 1, pp. 177–183, Mar. 2015.CrossRefGoogle Scholar
Cheon, S., Kim, Y.-H., Kang, S.-Y., Lee, M. L., Lee, J.-M., and Zyung, T., ‘Circuit-model-based analysis of a wireless energy-transfer system via coupled magnetic resonances’, IEEE Trans. Ind. Electron., vol. 58, no. 7, pp. 2906–2914, Jul. 2011.CrossRefGoogle Scholar
Sanders, J. A., Verhulst, F., and Murdock, J. A., Averaging Methods in Nonlinear Dynamical Systems, 2nd ed. Springer, 2007.Google Scholar
Zhang, P., Saeedifard, M., Onar, O. C., Yang, Q., and Cai, C., ‘A field enhancement integration design featuring misalignment tolerance for wireless EV charging using LCL topology’, IEEE Trans. Power Electron., vol. 36, no. 4, pp. 3852–3867, Apr. 2021.Google Scholar
Dai, X., Jiang, J., and Wu, J., ‘Charging area determining and power enhancement method for multiexcitation unit configuration of wirelessly dynamic charging EV system’, IEEE Trans. Ind. Electron., vol. 66, no. 5, pp. 4086–4096, May 2019.CrossRefGoogle Scholar
Jiang, C., Chau, K. T., Lee, C. H. T., Han, W., Liu, W., and Lam, W. H., ‘A wireless servo motor drive with bidirectional motion capability’, IEEE Trans. Power Electron., vol. 34, no. 12, pp. 12001–12010, Dec. 2019.CrossRefGoogle Scholar
Han, W., Chau, K. T., Hua, Z., and Pang, H., ‘An integrated wireless motor system using laminated magnetic coupler and commutative-resonant control’, IEEE Trans. Ind. Electron., vol. 69, no. 5, pp. 4342–4352, May 2022.CrossRefGoogle Scholar
Gu, Y., Wang, J., Liang, Z., Wu, Y., Cecati, C., and Zhang, Z., ‘Single-transmitter multiple-pickup wireless power transfer: advantages, challenges, and corresponding technical solutions’, IEEE Ind. Electron. Mag., vol. 14, no. 4, pp. 123–135, Dec. 2020.CrossRefGoogle Scholar
Liu, C., Jiang, C., Song, J., and Chau, K. T., ‘An effective sandwiched wireless power transfer system for charging implantable cardiac pacemaker’, IEEE Trans. Ind. Electron., vol. 66, no. 5, pp. 4108–4117, May 2019.Google Scholar
Qu, X., Zhang, W., Wong, S.-C, and Tse, C. K., ‘Design of a current-source-output inductive power transfer LED lighting system’, IEEE J. Emerg. Sel. Topics Power Electron., vol. 3, no. 1, pp. 306–314, Mar. 2015.Google Scholar
Liu, W., Chau, K. T., Lee, C. H. T., Jiang, C., Han, W., and Lam, W. H., ‘A wireless dimmable lighting system using variable-power variable-frequency control’, IEEE Trans. Ind. Electron., vol. 67, no. 10, pp. 8392–8404, Oct. 2020.CrossRefGoogle Scholar
Accessibility standard: Inaccessible, or known limited accessibility
The PDF of this book is known to have missing or limited accessibility features.
We may be reviewing its accessibility for future improvement, but final compliance is
not yet assured and may be subject to legal exceptions. If you have any questions,
please contact
accessibility@cambridge.org.
Content Navigation
Table of contents navigation
Allows you to navigate directly to chapters, sections, or non‐text items through a linked table of contents, reducing the need for extensive scrolling.
Allows you to navigate directly to chapters, sections, or non‐text items through a linked table of contents, reducing the need for extensive scrolling.
Index navigation
Provides an interactive index, letting you go straight to where a term or subject appears in the text without manual searching.
Provides an interactive index, letting you go straight to where a term or subject appears in the text without manual searching.
Reading Order & Textual Equivalents
Single logical reading order
You will encounter all content (including footnotes, captions, etc.) in a clear, sequential flow, making it easier to follow with assistive tools like screen readers.
You will encounter all content (including footnotes, captions, etc.) in a clear, sequential flow, making it easier to follow with assistive tools like screen readers.
Short alternative textual descriptions
You get concise descriptions (for images, charts, or media clips), ensuring you do not miss crucial information when visual or audio elements are not accessible.
You get concise descriptions (for images, charts, or media clips), ensuring you do not miss crucial information when visual or audio elements are not accessible.
Full alternative textual descriptions
You get more than just short alt text: you have comprehensive text equivalents, transcripts, captions, or audio descriptions for substantial non‐text content, which is especially helpful for complex visuals or multimedia.
You get more than just short alt text: you have comprehensive text equivalents, transcripts, captions, or audio descriptions for substantial non‐text content, which is especially helpful for complex visuals or multimedia.
Visual Accessibility
Use of colour is not sole means of conveying information
You will still understand key ideas or prompts without relying solely on colour, which is especially helpful if you have colour vision deficiencies.
You will still understand key ideas or prompts without relying solely on colour, which is especially helpful if you have colour vision deficiencies.
Use of high contrast between text and background colour
You benefit from high‐contrast text, which improves legibility if you have low vision or if you are reading in less‐than‐ideal lighting conditions.
You benefit from high‐contrast text, which improves legibility if you have low vision or if you are reading in less‐than‐ideal lighting conditions.