摘要
为了解决传统电磁式互感器测量电流易受电磁干扰和绝缘成本高的问题,全光纤技术凭借其绝缘、高精度、大动态的电流测量优势和数字化输出等优点逐渐被应用于电力系统中。结合国内外光纤传感技术,综述了全光纤电流测量技术应用在电力系统中的进展以及尚存在的问题,展望了全光纤电流传感器(all fiber optical current sensor, AFOCS)的发展趋势。对偏振式、反射式和双调制式结构的AFOCS存在的优、缺点进行评价,分析了每种结构的传感器在电力系统中的应用前景,并对比了温度、线性双折射和数据处理算法等不同因素对全光纤传感器测量电流精度的影响。结果表明:随着传感器结构的改进以及各种算法的应用,AFOCS应用在电力系统中已成为新的趋势,测量电流的精度以及稳定性得到明显提升,未来需要进一步提高室外环境中传感器测量电流的稳定性以及降低故障率。
The measuring current of the traditional electromagnetic transformer is vulnerable to electromagnetic interference and the insulation cost is high,to solve the problem,the all fiber technology has been applied in the power system with its advantages of insulation,high precision,large dynamic current measurement and digital output.With optical fiber sensing technology at home and abroad,the progress and existing problems of all optical fiber current measurement technology applied in power system were reviewed,and the development trend of all fiber optical current sensor(AFOCS)was forecasted.The advantages and disadvantages of polarization,reflec-tion and double modulation all-fiber current sensors were evaluated,and the application prospect of each type of sensor in power system was analyzed.The effects of different factors such as tem-perature,linear birefringence and data processing algorithm on the measurement accuracy of the all-fiber sensor were compared.The results show that with the improvement of sensor structure and the application of various algorithms,the application of all fiber optical current sensor in the power system has become a new trend,the accuracy and stability of current measurement has been significantly improved,and that efforts need to be taken to improve the stabiltiy of sensor in outdoor environment to measure current and reduce the failure rate.
作者
高超
熊佳明
林志力
杨仁旭
周福升
黄若栋
杨芸
GAO Chao;XIONG Jiaming;LIN Zhili;YANG Renxu;ZHOU Fusheng;HUANG Ruodong;YANG Yun(Electric Power Research Institute,China Southern Power Grid,Guangzhou,510663,China;Guangdong Testing Institute of Product Quality Supervision,Gangzhou,510670,China;Guang’an Electric Testing Center(Guangdong)Co.Ltd.,Dongguan 523325,Guangdong,China)
出处
《西安工程大学学报》
CAS
2023年第6期78-88,共11页
Journal of Xi’an Polytechnic University
基金
广东省重点领域研发计划项目(2020B0404020003)。
关键词
全光纤电流传感器
电流测量
传感器技术
线性双折射
数据处理算法
fiber optical current sensor
current measurement
sensor technology
linear birefrin-gence
data processing algorithm
