Wireless DC Motor Drives with Selectability and Controllability

Chaoqiang Jiang, K.T. Chau, Chunhua Liu and Wei Han
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Chaoqiang Jiang: Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, China
K.T. Chau: Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, China
Chunhua Liu: School of Energy and Environment, City University of Hong Kong, Hong Kong, China
Wei Han: Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, China

Energies, 2017, vol. 10, issue 1, 1-15

Abstract: This paper proposes and implements the concept of wireless DC motor drives, which can achieve the abilities of selective driving and controllable speed. Due to different resonant frequencies of the multiple energy receivers of the associated DC motor drives, the transmitter can be purposely tuned to the specified resonant frequency which matches with the specified receiver, hence driving the specified motor selectively. In the meantime, the burst fire control is used to regulate the operating speed of the motor working at the resonant frequency, hence retaining the maximum power transmission efficiency. Both finite element analysis and experimentation are given to verify the validity of the proposed wireless DC motor drive system. For exemplification, three different resonant frequencies, namely 60 kHz, 100 kHz and 140 kHz, are selected to energize three DC motors. Under the burst fire control method, the speed of each motor can be regulated separately and the wireless power transfer (WPT) system can achieve the measured power transmission efficiency of about 60%.

Keywords: magnetic resonance; wireless power transfer; wireless motor; selectability; controllability (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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