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| Публикация: №1 | The Effect of Load Impedance on the Efficiency of a Wireless Power Transfer System with an Additional Resonant Coil Nikolay Madzharov, Technical University of Gabrovo, BG | | Издателство: | PCIM Conference 2025, 6 – 8 May 2025, Nuremberg DOI: 10.30420/566541193 | | Изд.год.: | 2025 | | Вид: | Научна публикация - Доклад от межд.конф. в чужбина | | Абстракт: | Modern wireless power transfer systems (WPTS) are complex electromechanical devices, in the
development of which mathematical analysis and computer-simulated models often fail to fully replicate
the complex processes occurring within them. These processes can be categorized into three main
groups: mechanical, electrical, and electromagnetic.To verify the analytical results obtained in [1,2], a
laboratory mockup of a wireless charging system (WCS) for electric vehicle (EV) was developed at a
1:4 scale. The main goal is to simulate the real operating conditions of a wireless charging station with
the following parameters: a transmitter coil (TX), a resonant coil (RC), and a receiver coil (RX) with a
diameter of 600 mm, as well as an EV clearance ranging from 100 to 350 mm.The possibility of efficient
energy transfer over a distance greater than D/4 (D- diameter of the transmitter coil) has been
investigated. A series of experiments are made under different load resistances, representing the battery
discharge level at the beginning of the charging process- from fully discharged battery to an fully charged
battery. The results of the study are presented in graphic form, showing that the system's efficiency
remains within very good limits (above 80%), regardless of the battery discharge level (load resistance). | | Web: | DOI: 10.30420/566541193 | |
| Публикация: №2 | Iliev D., Madzharov N., Operation Mode of Converters with Energy Dosing Through an Inductive Element with Application in Wireless Charging Stations | | Издателство: | 23rd International Symposium on Electrical Apparatus and Technologies, SIELA 2024Bourgas12 June 2024through 15 June 2024 | | Изд.год.: | 2024 | | Вид: | Научна публикация - Доклад от межд. конф. в Б-я | |
| Публикация: №3 | Iliev D., Madzharov N., Model of a Wireless Power Transfer System with an Extended Air Gap | | Издателство: | 2024 59th International Scientific Conference on Information, Communication and Energy Systems and Technologies, ICEST 2024 - Proceedings, 2024 | | Изд.год.: | 2024 | | Вид: | Научна публикация - Доклад от межд. конф. в Б-я | |
| Публикация: №4 | Iliev D., N. Madzharov, Model of a Wireless Power Transfer System with an Extended Air Gap, 59th International Scientific Conference on Information, Communication and Energy Systems and Technologies, ICEST 2024 - Proceedings, 2024 | | Издателство: | 59th International Scientific Conference on Information, Communication and Energy Systems and Technologies, ICEST 2024 | | Изд.год.: | 2024 | | Вид: | Научна публикация - Доклад от межд. конф. в Б-я | |
| Публикация: №5 | Iliev D., N. Madzharov, Operation Mode of Converters with Energy Dosing Through an Inductive Element with Application in Wireless Charging Stations, 23rd International Symposium on Electrical Apparatus and Technologies, SIELA 2024 - Proceedings, 2024 | | Издателство: | 23rd International Symposium on Electrical Apparatus and Technologies, SIELA 2024 | | Изд.год.: | 2024 | | Вид: | Научна публикация - Доклад от межд. конф. в Б-я | |
| Публикация: №6 | Madzharov N., Iliev D.,Design of wireless power transfer system and research of its efficiency at different loads | | Издателство: | УНИТЕХ 24 | | Изд.год.: | 2024 | | Вид: | Научна публикация - Доклад от межд. конф. в Б-я | |
| Публикация: №7 | D. Iliev, “Improving Performance of a Wireless Power Transfer System Using Different Inductance Value”; International Scientific Conference Unitech; 17-18.11.2023; Gabrovo, Bulgaria. ISSN: 1313-230X. | | Издателство: | International Scientific Conference Unitech 2023 | | Изд.год.: | 2023 | | Вид: | Научна публикация - Доклад от межд. конф. в Б-я | |
| Публикация: №8 | Nikolay Madzharov, Desislav Iliev, "Converters with Energy Dosing by Inductance", 2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST), 29.06. 2023 - 01. 07. 2023, Nis, Serbia, ISBN:979-8-3503-1073-3 | | Издателство: | 2023 58th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) | | Изд.год.: | 2023 | | Вид: | Научна публикация - Доклад от межд.конф. в чужбина | |
| Публикация: №9 | D. Iliev, N. Madzharov, "Converters with Energy dosing by Inductance", International Scientific Conference Unitech 2022, 18-19. 11. 2022, Gabrovo, Bulgaria, ISSN: 1313-230X. | | Издателство: | International Scientific Conference Unitech 2022 | | Изд.год.: | 2022 | | Вид: | Научна публикация - Доклад от межд. конф. в Б-я | |
| Публикация: №10 | Nikolay Madzharov, Desislav Ilie,"Analysis of Magnetic Flux Density in a Model of an Inductive-Resonance Energy Transfer System", PCIM Europe 2022; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management,10-12 May 2022, Nuremberg, Germany,ISBN:978-3-8007-5822-7. | | Издателство: | PCIM Europe 2022 | | Изд.год.: | 2022 | | Вид: | Научна публикация - Доклад от межд.конф. в чужбина | |
| Публикация: №11 | Nikolay Madzharov, Desislav Iliev, "Wireless Power Transfer System with Four Degrees of Freedom", 2022 57th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST), 16-18 June 2022, Ohrid, North Macedonia, ISBN:978-1-6654-8500-5 | | Издателство: | 2022 57th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) | | Изд.год.: | 2022 | | Вид: | Научна публикация - Доклад от межд.конф. в чужбина | |
| Публикация: №12 | Desislav Iliev, Nikolay Madzharov, Raycho Ilariono, "Methods to Increase Distance in Wireless Power Transfer Systems", 2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST),16-18 June 2021, Sozopol, Bulgaria,ISBN:978-1-6654-2887-3 | | Издателство: | 2021 56th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) | | Изд.год.: | 2021 | | Вид: | Научна публикация - Доклад от межд. конф. в Б-я | |
| Публикация: №13 | D. Iliev, N. Madzharov, "Computer Analysis of Magnetic Flux Distribution in Wireless Power Transfer System", International Scientific Conference Unitech 2021, 19-20. 11.2021, Gabrovo, Bulgaria, ISSN: 1313-230X. | | Издателство: | International Scientific Conference Unitech 2021 | | Изд.год.: | 2021 | | Вид: | Научна публикация - Доклад от межд. конф. в Б-я | |
| Публикация: №14 | Nikolay Madzharov, Desislav Iliev;"Design and Regulation of the HF Inverter for Contactless Power Transfer System"; 2020 55th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST), 10-12 September2020 Nish, Serbia,ISBN:978-1-7281-7143-2 | | Издателство: | 2020 55th International Scientific Conference on Information, Communication and Energy Systems and Technologies (ICEST) | | Изд.год.: | 2020 | | Вид: | Научна публикация - Доклад от межд.конф. в чужбина | |
| Публикация: №15 | Nikolay Madzharov; Desislav Iliev,"Contactless Power Supply and Communication of the Device for Measuring Excess Fuel in Modern Diesel Engines", International Scientific Conference Unitech 2020, 20-21. 11.2020, Gabrovo, Bulgaria, ISSN: 1313-230X. | | Издателство: | International Scientific Conference Unitech 2020 | | Изд.год.: | 2020 | | Вид: | Научна публикация - Доклад от межд. конф. в Б-я | |
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