Real-Time Monitoring System for Stator and Rotor Temperature of Hydroelectric Generator Based on Fluorescent Optical Fiber Sensing

IF 1.2 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Microwave and Optical Technology Letters Pub Date : 2025-08-12 DOI:10.1002/mop.70357

Shuo Yang, Shuo Yang, Junhu Qiu, Xiwang Sun, Zhaoyan Zhang, Cunguang Lou, Zhaopeng Li

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引用次数: 0

Abstract

Overheating of the stator and rotor in hydroelectric generators poses significant safety risks. Conventional temperature monitoring methods are unable to directly measure temperature and can be compromised by electromagnetic interference in dynamic environments, reducing measurement accuracy. To address these challenges, this paper introduces a fluorescence-lifetime-based optical fiber sensing system for distributed temperature monitoring of stator and rotor components under power generation conditions. The system simultaneously measures both components, exhibits strong electromagnetic interference resistance, and supports real-time temperature visualization via a customized custom graphical user interface (GUI) platform for data storage and analysis. Installed in a hydropower station in Sichuan province, during summer operation, the system successfully collected real-time stator and rotor temperature data at rotational speeds of 500 rpm, achieving measurement accuracy of ±0.3°C. This approach demonstrates significant potential for industrial deployment in advanced condition monitoring of hydroelectric generator.

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基于荧光光纤传感的水轮发电机定子转子温度实时监测系统

水力发电机的定子和转子过热会带来重大的安全隐患。传统的温度监测方法无法直接测量温度，并且在动态环境中容易受到电磁干扰，降低了测量精度。为了解决这些挑战，本文介绍了一种基于荧光寿命的光纤传感系统，用于发电条件下定子和转子部件的分布式温度监测。该系统同时测量两个组件，具有很强的抗电磁干扰能力，并通过定制的定制图形用户界面（GUI）平台支持实时温度可视化，用于数据存储和分析。该系统安装于四川某水电站，在夏季运行期间，成功采集了转速为500转/分时定子和转子的实时温度数据，测量精度为±0.3℃。该方法在水轮发电机组先进状态监测中具有较大的工业应用潜力。

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来源期刊

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication