Research on feedback type all fiber current transformer status monitoring

Zhengguang Chen; Xianshan Guo; Jundong Tian; Can Li; Junchang Huang; Li Xia

doi:10.1117/12.3004927

24 November 2023 Research on feedback type all fiber current transformer status monitoring

Zhengguang Chen, Xianshan Guo, Jundong Tian, Can Li, Junchang Huang, Li Xia

Proceedings Volume 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023); 129350X (2023) https://doi.org/10.1117/12.3004927
Event: Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 2023, Xi’an, China

Abstract

In recent years, due to harsh working environments, increased accuracy requirements, and limited fiber optic technology levels, the active all-fiber optical current transformer (FOCT) used in the power grid of China State Grid is equipped with optical power compensation modules and modulation voltage compensation modules. However, aging of the light source (10 years) and extremely low temperature (-40℃) can cause the compensation modules to fail, resulting in decreased measurement reliability and significant losses to the power grid system. In this paper, by simulating the working status of FOCT when the power source ages and the modulator function deteriorates, it is found that the second harmonic and phase modulation depth are parameters that can timely reflect the working status of the optical power compensation module and the modulation voltage compensation module. This provides reference for the monitoring of feedback FOCT and helps improve the stability of feedback FOCT.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Zhengguang Chen, Xianshan Guo, Jundong Tian, Can Li, Junchang Huang, and Li Xia "Research on feedback type all fiber current transformer status monitoring", Proc. SPIE 12935, Fourteenth International Conference on Information Optics and Photonics (CIOP 2023), 129350X (24 November 2023); https://doi.org/10.1117/12.3004927

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