非接触式自积分D-dot周角传感器设计与试验研究  

Design and experimental study of non-contact self-integration D-dot circumferential angle sensor

作　　者：张旭东 唐立军 杜肖 和学豪 汪金刚[2] 王晓天 ZHANG Xudong;TANG Lijun;DU Xiao;HE Xuehao;WANG Jin’gang;WANG Xiaotian(Electric Power Research Institute of Yunnan Power Grid Co.,Ltd.,Kunming 650000,China;State Key Laboratory of Power Transmission Equipment Technology(Chongqing University),Chongqing 400044,China)

机构地区：[1]云南电网有限责任公司电力科学研究院,云南昆明650000 [2]输变电装备技术全国重点实验室(重庆大学),重庆400044

出　　处：《电工电能新技术》2024年第12期83-94,共12页Advanced Technology of Electrical Engineering and Energy

基　　金：重庆市自然科学基金项目(cstc2021jcyj-msxmX1037);低误报长续航轻量化智能临电预警安全帽研发研究项目(YNKJXM20210199)。

摘　　要：根据智能电网对先进传感和测量技术的发展需求以及不同场景下的电网电压监测的需求,基于电磁耦合测量原理的D-dot传感器能够实现电网电压的非接触测量。作为电网获取电压信号的重要设备,它对整个测量系统的质量有着重要影响。为解决D-dot传感器测量方向单一以及对安装角度存在要求等问题,本文深入探讨了D-dot传感器的基本原理和差动输入结构,并研究了耦合磁场下电极的分割和矢量的合成规律,最后提出了一种新的自积分工作状态下的D-dot周角传感器设计,并通过有限元仿真软件进行了实验验证,以期获得更准确的测量结果。与传统传感器相比,D-dot周角传感器可达到多角度测量的目的,也更能满足各种实际情况下对各方向电参量的测量需求。According to the development needs of smart grid for advanced sensing and measurement technology and the needs of grid voltage monitoring in different scenarios,D-dot sensor based on electromagnetic coupling measurement principle can realize the non-contact measurement of grid voltage,which,as an important device for obtaining voltage signals from the grid,will influence the effect of the whole measurement system.In order to solve the problem that the D-dot sensor has only one single measurement direction,as well as to fulfill the requirements of the installation angle and other issues,in this paper,the basic principle and differential input structure of the D-dot sensor are discussed in depth,and the segmentation of the electrode and the synthesis law of the vector under the coupled magnetic field are investigated.Finally a new design of the D-dot circumferential angle sensor under the self-integrating operating state is proposed and experimentally verified by the finite element simulation software with the aim of obtaining a more accurate measurement result.Compared with the traditional sensors,the D-dot circumferential angle sensor can achieve the purpose of multi-angle measurement,and it is also more capable of meeting the demand for the measurement of electrical parameters in all directions in various practical situations.

关 键 词：电压互感器 D-dot传感器 非接触测量 

分 类 号：TM933[电气工程—电力电子与电力传动]