Monitoring internal power transformer temperature using distributed optical fiber sensors

Badar, Mudabbir; Lü, Ping; Wang, Qirui; Boyer, Thomas; Chen, Kevin P.; Ohodnicki, Paul R.

doi:10.1117/12.2559000

Cited by 3 publications

(1 citation statement)

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“…The stable result in this work eliminates the potential error in point sensing with pre-defined locations and highlights the possibility of locating abnormal cracks and temperature hotspots due to cell aging. Rayleigh-based OFDR systems have also been applied to the temperature monitoring of the magnetic core and insulation oil of a power transformer by Lu et al [ 109 ] and Badar et al [ 110 , 111 ]. The above cases have confirmed the unique advantage of immunity to EMI of fiber optic sensors in high power electrical components and demonstrated their distributed sensing capability, which is highly critical to monitor the health of these electrical assets.…”

Section: Operating Principle and Recent Advances In Fiber Optic Sementioning

confidence: 99%

Fiber Optic Sensing Technologies for Battery Management Systems and Energy Storage Applications

Preger

Burroughs

et al. 2021

Sensors

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Applications of fiber optic sensors to battery monitoring have been increasing due to the growing need of enhanced battery management systems with accurate state estimations. The goal of this review is to discuss the advancements enabling the practical implementation of battery internal parameter measurements including local temperature, strain, pressure, and refractive index for general operation, as well as the external measurements such as temperature gradients and vent gas sensing for thermal runaway imminent detection. A reasonable matching is discussed between fiber optic sensors of different range capabilities with battery systems of three levels of scales, namely electric vehicle and heavy-duty electric truck battery packs, and grid-scale battery systems. The advantages of fiber optic sensors over electrical sensors are discussed, while electrochemical stability issues of fiber-implanted batteries are critically assessed. This review also includes the estimated sensing system costs for typical fiber optic sensors and identifies the high interrogation cost as one of the limitations in their practical deployment into batteries. Finally, future perspectives are considered in the implementation of fiber optics into high-value battery applications such as grid-scale energy storage fault detection and prediction systems.

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Section: Operating Principle and Recent Advances In Fiber Optic Sementioning

confidence: 99%