高灵敏度全光纤电流传感器研究进展

全光纤电流传感器作为智能电网中的重要设备之一, 具有比传统电磁式互感器更显著的优势, 在高压及超高压环境中有广阔的应用前景。首先阐明了影响全光纤电流传感器灵敏度的主要因素, 综述了近年来国内外学者提高电流传感灵敏度的解决方案和研究成果; 其次着重分析一些改进型结构的全光纤电流传感器消除温度、线性双折射等对传感灵敏度影响的工作原理, 并讨论了各自主要的优缺点; 最后, 结合高灵敏度全光纤电流传感器的研究现状, 指出了其未来发展趋势。

Research progress of high sensitivity all fiber optic current sensor

As one of the important devices in smart grid,all fiber optic current sensor has more significant advantages than traditional electromagnetic transformer,and has broad application prospects in high voltage and ultra-high voltage environment.Firstly,the main factors affecting the sensitivity of all fiber optic current sensor are clarified,and the solutions and research results for improving the sensitivity of current sensor by domestic and foreign scholars in recent years are summarized;Secondly,the working principle of some improved all fiber optic current sensors to eliminate the influence of temperature and linear birefringence on the sensing sensitivity is emphatically analyzed,and their main advantages and disadvantages are discussed;Finally,combined with the research status of high sensitivity all fiber current sensor,the future development trend is pointed out.