中国电机工程学报2026，Vol.46Issue(2)：812-821,中插31,11.DOI:10.13334/j.0258-8013.pcsee.241394
面向变压器内部状态监测的"便利贴式"磁场取能装置功率特性分析与优化
Analysis and Optimization of Power Characteristics of"Convenient Stick"Magnetic Field Energy Harvesting Device for Internal Status Monitoring of Transformers
摘要
Abstract
With the increase of electricity load,problems such as internal vibration and heating,partial discharge,and winding inter turn short circuit often occur in transformer substations.Real time monitoring of the internal status of transformers has become inevitable.However,the internal space of transformers is limited,and traditional battery powered monitoring terminals have a short lifespan and are difficult to replace.The existing electromagnetic field energy harvesting devices have a large volume and lack installation conditions.Therefore,this article focuses on the working scenario of transformer windings being wound tightly against the magnetic core on one side,and solves the problem of traditional CT type magnetic field energy harvesting devices requiring looped current conductors for energy harvesting.A simple"convenience stick"magnetic field energy harvesting device structure is proposed.In order to improve the energy harvesting power characteristics,clarify the key influencing factors and design directions,a multi-layer stacked magnetic flux calculation method is proposed,and an accurate power characteristic calculation model is constructed to analyze the impact of different turns and winding methods of the energy harvesting device on the energy harvesting power.Simultaneously considering the changes in the position of the energy harvesting device caused by installation and transformer vibration,this study explores the attenuation characteristics of the energy harvesting output power under deflection conditions,and proposes an optimal turn number configuration strategy for high degree of freedom energy harvesting power.The"sticky note"magnetic field energy harvesting device designed in this article can ensure stable power supply to the monitoring terminal and achieve real-time monitoring and alarm of the internal status of the transformer.关键词
磁场感应取能/"便利贴式"磁场取能/变压器内部状态监测/高自由度/功率提升Key words
magnetic field induction energy harvesting/"convenient stick"magnetic field energy harvesting/internal status monitoring of transformers/high degree of freedom/power increase分类
信息技术与安全科学引用本文复制引用
王维,石宇辰,许晨进,苏文博..面向变压器内部状态监测的"便利贴式"磁场取能装置功率特性分析与优化[J].中国电机工程学报,2026,46(2):812-821,中插31,11.基金项目
江苏省333高层次人才培养工程专项项目(3-16-292) （3-16-292）
江苏省高等学校基础科学(自然科学)研究项目(22KJB470021).The"333 Engineering"Research Project of Jiangsu Province(3-16-292) （自然科学）
The Natural Science Foundation of the Higher Education Institutions of Jiangsu Province(22KJB470021). （22KJB470021）
