电力系统保护与控制2024，Vol.52Issue(10)：74-83,10.DOI:10.19783/j.cnki.pspc.231324
基于辅助磁芯阻抗自适应调整的输电线路在线稳定取能方法
An online stable energy extraction method for a transmission line based on adaptive adjustment of auxiliary core impedance
摘要
Abstract
To address the issue of energy overflow in online energy harvesting devices caused by large fluctuations in current in power transmission lines,a method for stable online energy harvesting on transmission lines based on adaptive adjustment of auxiliary magnetic core impedance is proposed.By adding auxiliary magnetic cores and constructing a multi-magnetic circuit model for the energy harvesting branch and signal branch,the goal of stable energy harvesting is achieved.Based on the relationship between busbar,energy harvesting branch coil,and signal branch coil currents,a corresponding energy harvesting model is built on the Matlab/Simulink simulation and test platform.The operational effects of the energy harvesting branch are investigated at different current levels and with or without auxiliary magnetic cores.The costs,control complexity,and reliability are also analyzed.The simulation and test results demonstrate that even as the current in the power transmission line rises from 30 A to 100 A,the output voltage of the energy harvesting load can still be maintained within a stable range.This confirms that the output voltage of the energy-harvesting load can be maintained without additional power supply modules,meeting the power supply requirements of online monitoring devices.关键词
在线取能/辅助磁芯/阻抗调整/宽范围电流/输出电压/低发热Key words
online energy extraction/auxiliary core/impedance adjustment/wide range current/output voltage/low fever引用本文复制引用
詹坤,高广德,陈亚龙,罗劲浩,李光竹..基于辅助磁芯阻抗自适应调整的输电线路在线稳定取能方法[J].电力系统保护与控制,2024,52(10):74-83,10.基金项目
This work is supported by the National Natural Science Foundation of China(No.51907104). 国家自然科学基金项目资助(51907104) （No.51907104）
