The Design and Fabrication of Multiple-Transmitter Coils and Single-Receiver Coils for a Wireless Power Transfer System to Charge a 3s LiPo Drone’s Battery

Ahmed O. MohamedZain, Lee Wei Hou, Huangshen Chua (), Kianmeng Yap () and Lau Kim Boon
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Ahmed O. MohamedZain: Research Centre for Human-Machine Collaboration, Department of Computing and Information Systems, School of Engineering and Technology, Suway University, Bandar Sunway, Petaling Jaya 47500, Malaysia
Lee Wei Hou: Department of Electrical and Electronics Engineering, School of Engineering, University of Wollongong (UOW) Malaysia University College, Utropolis, Glenmarie, Shah Alam 40150, Malaysia
Huangshen Chua: Department of Electrical and Electronics Engineering, School of Engineering, University of Wollongong (UOW) Malaysia Penang University College, Jalan Anson, George Town 10400, Malaysia
Kianmeng Yap: Research Centre for Human-Machine Collaboration, Department of Computing and Information Systems, School of Engineering and Technology, Suway University, Bandar Sunway, Petaling Jaya 47500, Malaysia
Lau Kim Boon: Department of Electrical and Electronics Engineering, School of Engineering, University of Wollongong (UOW) Malaysia University College, Utropolis, Glenmarie, Shah Alam 40150, Malaysia

Energies, 2023, vol. 16, issue 9, 1-23

Abstract: Recent research has shown an increasing interest in wireless power transfer (WPT) technology for drone batteries. The inconvenience of wired charging, especially for drones, is a huge obstacle. In this research project, a WPT platform was proposed by applying four transmitting coils and a single receiving coil. To meet the industrial standards required for transmitter Tx and receiver Rx, a calculation of the parameters was implemented. An H-bridge MOSFET was used as a DC–AC inverter, a bridge diode was used as an AC–DC rectifier, and a Pi low pass filter was added to the receiver circuit design to filter the high-frequency noise. Experimental investigations were conducted to study the maximum power and power efficiency of the coil’s alignment. The focus of this article was to design and fabricate workable multiple-transmitter coils and a single-receiver coil for a wireless power transfer system, in order to charge a 3S LiPo drone’s battery. It not only covers an overview of wireless power transfer but also includes the method for charging a 3S LiPo drone’s battery, a misalignment study on the X and Y axes of the wireless charging system, and a stable charging of the battery that does not exceed the maximum current of 1.26 A for healthy charging. An efficiency of 58.29% was achieved at a power of 14.924 W and the minimum value was found to be 0.008 W. The efficiency of the typical coil design and the proposed coil design were 55.04% and 12.06%, respectively. The charging current obtained was 1.27 A, which gives an estimated charging time of 3.31 h based on the calculation. The actual charging time of the 3s 4200 mAh 11.1 V LiPo battery was 2 h.

Keywords: wireless power transfer; inductive power transfer; drones; wireless power transmitter; wireless power receiver; lithium polymer battery (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: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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