Analysis and modeling magnetic energy harvester with field shaping capacitors

Frontiers in Energy Research

Energy Research

Yan Ma¹  Jian Li²  Ming Liu²  Guanhong Chen²  Man Zhang²  Min Sun² 

[1] Beijing Smart-Chip Microelectronics Technology Co., Ltd., Beijing, China;The Power System Wide-Area Measurement and Control Sichuan Provincial Key Laboratory, School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu, China;

关键词: magnetic energy harvester;    magnetic saturation;    field shaping capacitor;    advanced sensing;    magnetic saturation analysis;   

DOI  :  10.3389/fenrg.2023.1127198

 received in 2022-12-19, accepted in 2023-06-22,  发布年份 2023

来源: Frontiers

【 摘 要 】

A detailed circuit model is discussed in this paper for the operation of magnetic energy harvesters with field shaping capacitors (FSC) feeding constant voltage load. First an equivalent circuit with nonlinear inductance, current source and a diode bridge was given based on the physical analysis of the harvester. Then detailed analysis of the circuit operation and state transitions under various FSC are provided. A mathematical model is established to replace the circuit model so that the optimization of the system parameters, such as number of turns, load voltage, could be carried out directly. Simulation and experimental results are given in the paper to prove the effectiveness of the proposed circuit analysis method.

【 授权许可】

Unknown   
Copyright © 2023 Ma, Liu, Chen, Sun, Zhang and Li.