An automated transmitter positioning system for misalignment compensation of capacitive-coupled electric vehicles

Abstract

<span>Misalignments are one of the most unfavorable aspects of the capacitive power transfer (CPT) system, which is inevitable in most of the applications. Misalignments affect the overall resonances in the circuit and decrease the power transfer capability and efficiency. In this paper, an automated electro-mechanical transmitter positioning system is proposed for capacitive wireless charging to withstand both axial and rotational misalignments. The system can align the transmitter based on an adaptive algorithm, with respect to the position of the receiver to mitigate the misalignments. The overall system is designed using SolidWorks and the algorithm is verified using Processing. Then, a hardware prototype is constructed in the laboratory. The accuracy of the proposed system is calculated and compared with the simulation results. The system can achieve an accuracy of 99.5%, in case of axial misalignment and an average accuracy of 98.6%, in case of both axial and rotational misalignments, which validate the simulation results.</span>

Investigation of 1.5 kW secondary side power controlled method in a inductive wireless power transfer system

“…Alghrairi et al and Onishi et al [14], [15] focused on an asymmetric 4-coil-resonance coupling module with multiple transmitters for high stability, maximum power transfer, and efficiency. Siddique et al [16] presented an automated transmitter positioning system in a capacitive power transfer system (CPT). Shukor et al [17] analyzed the effect of turn ratio, air gap length, and capacitor value at both primary and Int J Pow Elec & Dri Syst ISSN: 2088-8694  Investigation of 1.5 kW secondary side power controlled method in a inductive … (Bhukya Bhavsingh) 671 secondary to voltage ratios with finite element analysis (FEA).…”