南方电网技术2023，Vol.17Issue(11)：120-129,10.DOI:10.13648/j.cnki.issn1674-0629.2023.11.012
非接触式交流电压探头设计与电压测量方法
Non-Contact AC Voltage Probe Design and Voltage Measuring Method
摘要
Abstract
Real-time and accurate voltage measurement data is the basis for constructing a transparent power grid.The non-contact measurement technology has the advantages of safety,convenience and low cost,and has become a realistic basis for widespread deployment.A flexible voltage probe based on the principle of capacitive coupling is designed in this paper,and the sampling circuit's impact on the probe voltage division is analyzed,and a method using 2 probes to figure out the wire voltage to be measured utilizing the different output is proposed.The simulation and experimental results show that the proposed method can measure the wire voltage without damaging the insulation sheath.In laboratory environment,the amplitude measurement error of steady power frequency voltage is less than 2%,and the phase measurement error is less than 0.2 °.关键词
非接触式电压传感/电容式电压探头/绝缘导线电压测量/同步相量测量Key words
non-contact voltage sensing/capacitive-based voltage probe/insulated wire voltage measurement/synchronized phasor measurement分类
信息技术与安全科学引用本文复制引用
李嘉贤,刘灏,付宇,毕天姝..非接触式交流电压探头设计与电压测量方法[J].南方电网技术,2023,17(11):120-129,10.基金项目
国家自然科学基金资助项目(52377098). Supported by the National Natural Science Foundation of China(52377098). （52377098）
