摘要
电场测量对于电力设备绝缘设计优化、高压系统电磁环境分析、屏蔽装置防护效果评估等领域具有重要意义。消逝场式电场传感器是近年来新兴的一类光纤电场传感器,测量上限高达24 MV/m、封装尺寸低至1.2mm×0.2mm×0.2mm,可同步测量多场点、多方向电场,在电缆故障诊断、特快速暂态过电压监测、电磁武器改良等方面具有广阔应用前景。目前,关于光学电场传感器原理和结构方面的研究综述较多,但缺乏对新型消逝场式电场传感器的相关总结,以及对各类光纤电场传感器技术参数的分析比较。为此,首先总结了消逝场式电场传感器的测量机理、典型结构、研究进展、应用场景、温度补偿方法和关键技术问题。在此基础上,重点分析、比较了各类光纤电场传感器的测量指标、封装尺寸和性能特点,并结合相关标准对其实用化过程中存在的问题进行了讨论。最后,指出消逝场式电场传感器在材料改性、加工工艺优化、微观尺度电场仿真和耦合影响因素分析等方面值得做进一步深入研究。对于消逝场式电场传感器的设计、研制与性能改进具有一定意义。
Electric field measurement is of great significance in insulation design optimization of power equipment, electromagnetic environment analysis of high voltage system, evaluation of the protective effect of shielding devices, and so on. Evanescent field sensor for electric field measurement is an emerging optical fiber electric field sensor proposed in recent years. The upper limit of its measuring range is up to 24 MV/m, and the package size is as small as 1.2 mm×0.2 mm×0.2 mm. It is capable of measuring multi-point and multi-directional electric field synchronously. It has a broad application prospect in cable fault diagnosis, VFTO monitoring, electromagnetic weapon improvement, etc. At present, the researches on the principle and structure of optical electric field sensors are extensively available in some literature reviews. However, there is a lack of summary of the new evanescent field sensors, as well as the analysis and comparison of the technical parameters of optical fiber electric field sensors. For this reason, the paper first summarizes the measuring principle, typical structure, research progress, application scenarios, temperature compensation methods, and critical technical problems of the evanescent field sensor. On this basis, the measuring index, package size, and performance characteristics of various optical fiber electric field sensors are analyzed and compared. Then, problems existing in the practical process of the sensors above are discussed according to the relevant standards. Finally, it is pointed out that the evanescent field sensor is worthy of further research in the aspects of material modification, processing optimization, micro-scale electric field simulation, and analysis of coupling influencing factors. The research is of specific significance for the design, development, and performance improvement of the evanescent field sensor for electric field measurement.
作者
刘轩东
程章颖
马乐晨
陈铭
LIU Xuandong;CHENG Zhangying;MA Lechen;CHEN Ming(State Key Laboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University,Xi’an 710049,China)
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2021年第6期1984-1997,共14页
High Voltage Engineering
基金
国家重点研发计划(2016YFB0900804)。
关键词
消逝场
电场测量
光纤传感器
电光效应
D型光纤
evanescent field
electric field measurement
optical fiber sensor
electro-optic effect
D-fiber
