Long-distance 275-kv gil monitoring system using fiber-optic technology

Miyazaki, Akio; Takinami, Naoki; Kobayashi, Shinichi; Nishima, Hideaki; Nakura, Y.; Komeda, Hidetsugu; Nagano, Hajime; Higashi, Hidenori

doi:10.1109/tpwrd.2002.807464

Cited by 6 publications

(3 citation statements)

References 4 publications

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“…A similar study was carried out by Miyazaki et al [94]. A distributed temperature monitoring system was established to monitor the distributed enclosure temperature of six phases of a 275 kV GIL, in the same GIL project (the Shinmeika‐Tokai line) as the literature above.…”

Section: Temperature Detection With Optical Methodsmentioning

confidence: 97%

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Optical sensing in condition monitoring of gas insulated apparatus: a review

et al. 2019

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Health monitoring of gas insulated apparatus is critical to improve the reliability and to reduce the life cycle cost. Among the various methods for monitoring, optical sensing developed fast in recent years due to their highly sensitive and antielectromagnetic interference behaviour. This study reviews the optical monitoring methods for partial discharge, gas concentration and temperature of gas insulted apparatus. In addition, the challenges of sensor development are carefully discussed here. The future prospects of optical monitoring of gas insulated apparatus are also analysed to inspire new ideas.

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Section: Temperature Detection With Optical Methodsmentioning

confidence: 97%

“…System configuration of enclosure surface temperature monitoring[94] Installation of IR temperature sensor[98] …”

mentioning

confidence: 99%

Optical sensing in condition monitoring of gas insulated apparatus: a review

et al. 2019

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“…Since the length of one gas compartment in the GIL actually put into operation is approximately 100 m and the equipment condition is not suitable for the PD localization experiment [19], a GIL experimental tank that considers the basic structural characteristics of the GIL and the sensor arrangement is established in the laboratory to simulate the PD in the real GIL, as shown in Figure 2. In order to easily distinguish the sensors in different positions, the sensors in Figure 2 are marked with serial numbers.…”

Section: The Principle Of Optical Pd Simulations In Gilmentioning

confidence: 99%

A novel partial discharge localization method for GIL based on the 3D optical signal irradiance fingerprint and bagging‐KELM

Zang

Qian

Zhou

et al. 2021

IET Generation Trans & Dist

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Partial discharge (PD) is one of the main reasons that endanger the safe operation of power equipment. The effective detection and localization of PD in a gas-insulated transmission line (GIL) is essential for timely finding the insulation defects to improve maintenance efficiency. Therefore, this paper proposes a method based on the three-dimensional optical signal irradiance fingerprint and bagging-kernel extreme learning machine (Bagging-KELM), which introduces optical simulation into the PD localization. Using a simulation model with the same size and optical sensor arrangement as the experimental GIL, optical simulation signals emitted from different PD sources are collected. Principal component analysis is used to extract the signal features to construct optical PD fingerprints that correspond to PD source locations. This paper builds all the simulated PD fingerprints into a PD fingerprint database. Afterwards, the Bagging-KELM is used to match PD optical fingerprints detected on site with the fingerprint database to identify the location of the PD sources. The experimental results show that the average localization error of this method is 0.93 cm, with 93.75% of the errors being less than 1.5 cm. The proposed method has better performance than the traditional KELM and BPNN, which can achieve precise PD localization in GIL.

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