中国电机工程学报2025，Vol.45Issue(3)：846-857,中插4,13.DOI:10.13334/j.0258-8013.pcsee.231517
基于电场反演的自供能型线路电压高精度测量技术研究
Research on Self-powered High Precision Voltage Measurement Technology for the Power Lines Based on the Inversion of Electric Field
摘要
Abstract
Voltage fluctuations in the power grid are one of the important factors affecting the safe and stable operation of the power lines and substations.However,traditional voltage measurement technologies in the power system have problems such as high insulation requirements,large volume,high manufacturing costs,lacking of reliable external power sources,and the need for power outage installation.In response to the above problems,this paper proposes a power line voltage sensing technology based on electric field inversion.By monitoring the rise time of capacitor voltage,the inverse problem of the power line voltage is obtained.First of all,the self-powered measurement principle of inverse problem of power line voltage is introduced.Then,the self-powered voltage measurement structure and the measurement accuracy are analyzed by simulation.Finally,the ultra-low power energy control strategy is proposed,which achieves high-precision acquisition,signal processing,and the transmission of capacitor charging time data.Meanwhile,the test platform is built to verify the measurement accuracy.The results show that under the ultra-low power consumption energy control strategy,the monitoring accuracy of capacitor charging time is within 0.5%,and the voltage measurement accuracy is within 0.86%.Combined with the above-mentioned strategy,it can effectively achieve high precision sensing and wireless communication transmission of line voltage without battery.关键词
线路电压测量/电场反演/自供能/超低功耗/能量控制Key words
power line voltage measurement/electric field inversion/self-powered/ultra-low power/energy control分类
信息技术与安全科学引用本文复制引用
许晨进,王维,汪鹤,季振亚,任翰林,段名荣,胡敏强..基于电场反演的自供能型线路电压高精度测量技术研究[J].中国电机工程学报,2025,45(3):846-857,中插4,13.基金项目
智能电网保护和运行控制国家重点实验室开放课题研究项目(SGNR0000KJJS2302142) （SGNR0000KJJS2302142）
国家自然科学基金项目(51807095) （51807095）
江苏省高等学校自然科学基金(面上项目)(22KJB470021). Open Research Project of State Key Laboratory of Smart Grid Protection and Control(SGNR0000KJJS2302142) （面上项目）
National Natural Science Foundation of China(51807095) （51807095）
Natural Science Foundation of the Higher Education Institutions of Jiangsu Province(General Project)(22KJB470021). （General Project）
