期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 38, 期 10, 页码 12309-12314出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2023.3291749
关键词
Ultrasonic motor; wireless motor drive; wireless power transfer
In this study, a novel wireless motor system called the wireless ultrasonic motor (WUM) system is proposed and analyzed. By combining wireless power transfer and ultrasonic motor technology, the system addresses the issues of complex controllers and converters, regular maintenance, and output ripple. Matching inductors and optimized coil structures are designed to improve power quality and filter harmonic voltages.
In this letter, a novel wireless motor system, namely, the wireless ultrasonic motor (WUM) system, is proposed and analyzed. A unique wireless drive topology is designed to solve the problems of the existing wireless drives, such as complex controller and converter at both the transmitting and receiving sides, regular maintenance, and output ripple resulted from motor type and control scheme. The key is to combine the merits of the wireless power transfer and ultrasonic motor to wirelessly energize the ultrasonic motor with high-frequency voltage directly. Meanwhile, a matching inductor is designed for the proposed wireless drive to improve power quality and to filter harmonic voltages at the motor side. Furthermore, laminated coil structure is optimized with electromagnetic decoupled ability and less ferrite core. Two-mode motor control method is designed to extend the speed range of the proposed WUM drive. Finally, operating principles and experimental results are provided to verify the feasibility and correctness of the proposed WUM drive system.
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