2024 : 2 : 25
Hassan Bevrani

Hassan Bevrani

Academic rank: Professor
Education: PhD.
ScopusId: 55913436700
Faculty: Faculty of Engineering
Address: Dept. Of Electrical and Computer Eng, University of Kurdistan, Allameh Hamdi Blvd, Sanandaj PO Box 416, P. C: 66177-15175, Kurdistan, Iran
Phone: +98-87-33624001


Multi-Phase Direct AC Wireless Power Transfer System: Comparative Proposals Using Frequency and Amplitude Modulations
Amplitude modulation (AM), dc-ac power converters, demodulation, frequency modulation (FM), multi-load, multi-phase, receivers, transmitters, wireless power transfer (WPT)
Journal IEEE Journal of Emerging and Selected Topics in Industrial Electronics
Researchers Akihito Wada ، Hiroaki Ota ، Toshifumi Ise ، Hassan Bevrani ، Shigekazu Sakabe ، Yuta Yanagisawa ، Yushi Miura ، Jia Liu


- Using multi-load wireless power transfer (WPT) systems to supply power to multiple receivers with a single transmitter is an interesting topic. However, previous studies are all based on a dc-dc WPT system. If the loads demand ac power, additional dc-ac inverters need to be implemented, which increases the system complexity and cost. This paper addresses two direct ac WPT systems that can regulate the ac power of multiple phases or loads independently, using frequency modulation (FM) and amplitude modulation (AM), respectively. The proposed WPT systems can directly control the ac power of multiple loads through the transmitter side, without any power converter at the receiver side. A typical application of the proposed system is for powering a three-phase load in a rotational object, e.g., three-phase motors in articulated robots or in-wheel motors. To demonstrate the feasibility of the proposed WPT systems, simulation and experiment studies of a wireless threephase power transfer are presented. The results suggest that AM is a more advantageous solution to a direct ac WPT system. A power-loss breakdown analysis is presented to suggest future steps of efficiency improvement.