Modelling and Design of a Coils Structure for 100 kW Three-Phase Inductive Power Transfer System

This paper proposes the design, fabrication, and static and computational fluid dynamics (CFD) analysis of a quadcopter with a unique structure. In contrast to traditional unmanned aerial vehicles (UAVs), the arms of the quadcopter are designed in the shape of a deoxyribonucleic acid (DNA) helix. Customization of the quadcopter is merged with additive manufacturing technology; its all-skeletal components are fabricated with acrylonitrile butadiene styrene material utilizing the fused deposition modeling technique. This design technology contributes to additional customization by diversifying the quadcopter’s applicability scenarios. Although the propellers have a significant impact on the movement of the UAV, the rotation of the propeller generates thrust in the axial direction of the quadcopter and is therefore a vital aspect of the quadcopter’s fabrication process. In order to calculate this thrust, CFD analysis is performed on the quadcopter and its propellers. In addition, the finite element method (FEM) is applied to the structural analysis of the DNA-shaped quadcopter’s (DNASQ) skeletal structure and components, and CFD is utilized to examine the impact of the quadcopter’s body during airflow. Based on the results of the structural assessment, it is determined that the structure’s completion would allow the weight of the avionics system to compensate for the impact accurately. According to the aerodynamic analysis, the drag force of the DNASQ is computed as 7.358 N, and the drag coefficient is calculated as 0.6656. After analyzing propeller thrust with the FEM at various rotational speeds, the highest thrust force is determined as 31.806 N at a rotating speed of 8,450 rpm (rev/min). Based on the results, it is clear that the propeller can generate the required thrust to lift the quadcopter and sustain dynamic loading without any failure.

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Modeling and Experiments of a Wireless Power Transfer System Considering Scenarios from In-Wheel-Motor Applications

Zhai

Zhang

Zhao

et al. 2023

Energies

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This paper presents the design and modeling procedure of a wireless power transfer (WPT) system applied to In-wheel-motor (IWM). The system is designed to transmit over 10 kW of power following the physical constraints faced by the IWM applications. The issues of coil misalignment and load change are discussed as particular scenarios in IWM. The finite element model is built for circular, rectangular, and double-D coils, finding that the rectangular coil has the best performance considering the transmission interval and misalignment resistance. The circuit design procedure is presented, and the analysis of the influence of load and mutual inductance change on the WPT system is addressed. Finally, the performance of the design is verified with experiments on a full-scale prototype. It is proved that the WPT system successfully transmits 10 kW of power with a DC–DC efficiency of over 90% under a transmission interval of 140 mm. The output voltage is stable under 40mm coil misalignment scenarios and over 50% load change.

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Modelling and Design of a Coils Structure for 100 kW Three-Phase Inductive Power Transfer System

Cited by 3 publications

References 41 publications

Optimal Design with Generalized Inductance Calculation for IPTs Using a Spiral Rectangular Coil Pair

Optimal Design with Generalized Inductance Calculation for IPTs Using a Spiral Rectangular Coil Pair

Novel Mechanical Design, Simulation, and CFD Analysis of a DNA-Shaped Quadcopter Fabricated through Additive Manufacturing

Modeling and Experiments of a Wireless Power Transfer System Considering Scenarios from In-Wheel-Motor Applications

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