双冗余全光纤电流传感器在线测量技术研究

庞福滨; 陈实; 王强龙; 刘东伟; 肖浩

庞福滨,陈实,王强龙,刘东伟,肖浩.双冗余全光纤电流传感器在线测量技术研究[J].电测与仪表,2026,63(5):164-174.
PANG Fubin,CHEN Shi,WANG Qianglong,LIU Dongwei,XIAO Hao.Research on online measurement technology of dual-redundant all-fiber optical current sensor[J].Electrical Measurement & Instrumentation,2026,63(5):164-174.

双冗余全光纤电流传感器在线测量技术研究

Research on online measurement technology of dual-redundant all-fiber optical current sensor

DOI：10.19753/j.issn1001-1390.2026.05.017

中文关键词: 全光纤电流传感器可靠性提升半导体光源光电探测器非线性误差温度误差

英文关键词:all-fiber optical current sensor, reliability improvement, semi-conductor light source, photodetector, nonlinear error, temperature error

基金项目:国家电网有限公司科技项目：“纯光CT高容错关键技术研究及应用”(5500-202355175A-1-1-ZN)

作者中文名	作者英文名	单位
庞福滨	PANG Fubin	国网江苏省电力有限公司电力科学研究院
陈实	CHEN Shi	国网江苏省电力有限公司电力科学研究院
王强龙	WANG Qianglong	北京世维通光智能科技有限公司
刘东伟	LIU Dongwei	北京世维通光智能科技有限公司
肖浩	XIAO Hao	北京世维通光智能科技有限公司

摘要点击次数: 626

中文摘要:

针对全光纤电流传感器中半导体光源和光电探测器的性能劣化问题，文中提出基于双冗余配置的全光纤电流传感器在线测量技术方案。首先，提出了双冗余全光纤电流传感器的光路方案及工作原理；然后，通过建立双工作波段光路的传输模型，探究了传感器调制解调测量方案，仿真分析了传感器的电流解调误差和温度影响误差；最后，通过搭建传感器实验样机，开展了传感器样机的非线性误差和温度误差试验，提出并验证了传感器精度的实时监测方法，进一步地对磁场干扰和振动干扰影响进行了研究。结果表明：在5%Ir~120%Ir（Ir=500 A）额定电流范围内，传感器样机的测量误差小于±1%；在-40 ℃~ +80 ℃温度范围内，测量误差小于±0.1%，并实现测量误差小于±0.2%的准确度自监测；在分别施加磁场干扰和振动干扰的影响下，传感器样机的测量误差同样小于±0.2%，研制的双冗余全光纤电流传感器样机计量精度已达到实用化要求。

英文摘要:

In response to the performance degradation problem of semi-conductor light sources and photodetectors in all-fiber optical current sensors, this paper proposes an online measurement technology scheme of all-fiber optical current sensor based on dual-redundancy configuration. Firstly, the optical path scheme and working principle of the dual-redundant all-fiber optical current sensor are proposed. Then, by establishing a dual band optical transmission model, the modulation and demodulation measurement scheme of the sensor is explored, and the current demodulation error and temperature influence error of the sensor are simulated and analyzed. Finally, a sensor prototype is built, and the nonlinear and temperature error tests are conducted on the sensor prototype. A real-time monitoring method for sensor accuracy is proposed and verified, and the effects of magnetic field interference and vibration interference are studied. The results show that within 5%Ir~ 120%Ir(Ir=500 A), the prototype measurement error is less than ±1%. Within the range of -40℃ to +80℃, the measurement error is less than ±0.1%, and accurate self-monitoring with the measurement error of less than ±0.2% is achieved. Under the influence of magnetic field interference and vibration interference, the measurement error is also less than ±0.2%. The developed dual-redundant all-fiber optical current sensor has achieved practical measurement accuracy requirements.

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