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一个相调节光纤传感器的稳定性和可重复性分析,用于变压器油衰老检测
Ugochukwu Elele1, Youssouf Brahami2, Issouf Fofana2
1School of Science and Engineering, Glasgow Caledonian University, Glasgow G4 OBA, UK.
Sensors (Basel, Switzerland)
|November 27, 2025
概括
一个新的Fabry-Pérot相调光纤传感器准确地实时监测变压器油的老化. 这项技术为各种油类提供可靠的现场诊断,提高了电网可靠性.
科学领域:
- 电气工程 电气工程
- 材料科学 材料科学 材料科学
- 传感器技术 传感器技术
背景情况:
- 变压器油的老化会降低物理化学性能,影响性能和寿命.
- 传统的离线诊断是耗时的,不能提供实时状态监测.
- 折射率 (RI) 变化是变压器油降解的关键指标.
研究的目的:
- 为了评估一个Fabry-Pérot相调节光纤传感器用于现场变压器油衰老检测.
- 为了评估不同工业变压器油类型的传感器性能.
- 为了证明实时在线状态监控的潜力.
主要方法:
- 在受控条件下对四种工业变压器油 (天然,合成,植物基,矿物基) 的热老化.
- 使用一个Fabry-Pérot相调光纤传感器 (FISO FRI RI传感器) 进行折射率测量.
- 使用可重复性,热响应,沉时间和线性指标评估传感器性能.
主要成果:
- 传感器显示出高可重复性 (SD < 7 × 10-5 RIU) 和稳定的热响应 (~ 0.0004 RIU/°C).
- 在所有测试的油样品中观察到强烈的热线性 (R2>0.99).
- 与合成和矿物油相比,天然和植物性油显示出更一致的传感器反应.
结论:
- 法布里-佩罗特相调节传感器是可靠和精确的在线变压器油状况监测.
- 这项技术为老化检测提供了传统离线诊断的可行替代方案.
- 该传感器显示了集成到智能电网诊断系统的巨大潜力.
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