Our team is engaged in contactless energy transfer based on magnetic induction.
Compared to traditional wired power supply, it has a number of advantages—it is simpler to use, more durable (no moving parts), provides greater safety, longevity, and aesthetic value (no cables, the device can be completely hidden under the surface). Thanks to this, contactless transfer is replacing cable connections in a variety of applications—factory systems for material transport, consumer electronics, biomedical applications, electric vehicle charging, and so on.
For more details, see the lecture by Professor Covic from the University of Auckland.
Within the team, we focus on the following topics:
- Bifurcation phenomena and their use for detecting metal objects, estimating system parameters (self-inductances of coils, mutual inductance, coupling coefficient).
- Optimization of transfer coils and chargers to maximize transfer efficiency.
- Bidirectional charging of electric vehicles, synchronization between the power electronics in the charging station and in the vehicle.
Development of power electronics and its control. We collaborate with Professor Covic’s team from the University of Auckland and the student team CTU Space Research. The team is part of the Department of Electrical Drives and Traction.
Team Members
Ing. Michal Košík, Ph.D.
Where can you meet us?
In addition to teaching the courses Power Electronics and Theory and Applications of Power Converters, we also offer a number of interesting final thesis topics for bachelor’s, master’s, and doctoral students.
Examples of Final Thesis Topics
- Modeling and design of coils for contactless energy transfer (Bc.).
- Design and implementation of a simple contactless charger (Bc.).
- Control of a contactless charger for 11kVA (Mgr.).
- Contactless charger for CTU Space Research (Mgr.).
- Power electronics for contactless charging of electric vehicles (Ph.D.).
- Control strategies for power electronics for contactless charging of electric vehicles (Ph.D.).
Equipment
- Modular test facility for 11kVA bidirectional contactless energy transfer (under development, planned completion date October 2026).
Our Results
- M. Košík, “Bifurcation-Based Coupling Estimation Method for LCC-S or Double LCC Compensated Inductive Power Transfer Systems,” 2025 IEEE Wireless Power Technology Conference and Expo (WPTCE), Rome, Italy, 2025, pp. 1-6, doi: 10.1109/WPTCE62521.2025.11062308.
- M. Košík, B. S. Gu and M. J. O’Sullivan, “NSGA-II Based Optimization of PCB Coil Array for Inductive Power Transfer,” 2024 IEEE Wireless Power Technology Conference and Expo (WPTCE), Kyoto, Japan, 2024, pp. 840-845 , doi: 10.1109/WPTCE59894.2024.10557416.
- M. Košík, A. D. Scher, A. Pešek and P. Skarolek, “A Study of a Novel Optimization Method for IPT Systems with Variable Frequency,” 2023 IEEE Wireless Power Technology Conference and Expo (WPTCE), San Diego, CA, USA, 2023, pp. 1-6, doi: 10.1109/WPTCE56855.2023.10216029.
- A. D. Scher and M. Košík, “Bifurcation-Based Parameter Extraction Method for IPT Systems with Sensorless Metal Object Detection,” 2023 IEEE Wireless Power Technology Conference and Expo (WPTCE), San Diego, CA, USA, 2023, pp. 1-6, doi: 10.1109/WPTCE56855.2023.10216037.
- M. Kosik, A. D. Scher, and J. Lettl, “Novel Method of Coupling Coefficient Estimation Based on the Bifurcation Phenomena in Inductive Power Transfer,” Electronics, vol. 10, no. 2548, pp. 1–18, Oct. 2021, doi: 10.3390/electronics10202548.
- A. D. Scher, M. Kosik, P. Pham, D. Costinentt, and E. Hossain, “Stability Analysis and Efficiency Optimization of an Inductive Power Transfer System with a Constant Power Load,” in IEEE Access, vol. 8, pp. 209762–209775, 2020 , doi: 10.1109/ACCESS.2020.3039181.
In case you are interested in cooperation, do not hesitate to contact us!
Ing. Michal Košík, Ph.D. (michal.kosik@cvut.cz)