Inductive energy harvesting from variable frequency and amplitude aircraft power lines

14th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

Toh, T.T.^1 ; Wright, S.W.^1 ; Kiziroglou, M.E.^1 ; Mueller, J.^2 ; Sessinghaus, M.^3 ; Yeatman, E.M.^1 ; Mitcheson, P.D.^1

Department of Electrical and Electronic Engineering, Imperial College London, United Kingdom^1

Wireless Competence Centre, Airbus Operations GmbH, Hamburg, Germany^2

SILVER ATENA Electronic Systems Engineering GmbH, Hamburg, Germany^3

关键词: Electrical generators;    Frequency characteristic;    Harvesting energies;    Noncontact methods;    Output voltage regulation;    Prototype system;    Variable amplitudes;    Variable frequencies;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/557/1/012095/pdf
DOI  :  10.1088/1742-6596/557/1/012095

来源: IOP

【 摘 要 】

This paper presents a non-contact method of harvesting energy from an aircraft power line that has an AC current of variable amplitude and a frequency range of 360-800 Hz. The current and frequency characteristics of the aircraft power line are dependent on the rotation speed of the electrical generators and will therefore change during a flight. The harvester consists of an inductive coil with a ferrite core, which is interfaced to a rectifier, step-down regulator and supercapacitor. A prototype system was constructed to demonstrate reliable output voltage regulation across a supercapacitor that will supply a peak power of 100 mW under duty cycled load conditions. The system could fully charge a 40 mF supercapacitor to 3.3 V in 78 s from a power line current of 1.5 Armsat 650 Hz.