Analysis on heat loss characteristics of a 10kV HTS power substation

Teng, Yuping; Dai, Shaotao; Song, Ning‐Ning; Zhang, Jingye; Zhu, Zhiqin; Zhou, Weiwei; Wei, Zhourong; Lin, Liangzhen; Xiao, Liye

doi:10.1016/j.cryogenics.2014.03.006

Cited by 5 publications

(3 citation statements)

References 15 publications

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“…Papers [22]- [24]illustrates a feasible HTS as an SFCL for the analysis of commercially available CCs. Paper [25], [26] conducted an SFCL design trial of -10 kV/200A‖ and carried out several experiments involving short circuit testing, recovery tests and -LN2‖ boiling trials. The findings indicate that the fault current gets decreased by -30%‖ to -70%‖, while the time to return from the fault span was linear.…”

Section: Literature Reviewmentioning

confidence: 99%

Modeling of Resistive Type Superconducting Fault Current Limiter

Bohidar¹,

Sharma²

2019

IJEAT

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In the coming smart grid, among the important issues related to the application of the “Superconducting Fault Current Limiters” (SFCL) is linked to its potential outcome on the decrease of abnormal fault Current. Because of the increased rate of failure currents, SFCL is most likely to enter a media and low-voltage network to reduce the electrical systems' ability and enhance the strength of the devices. All substations providing the distribution of electrical energy are prone to unnecessary voltage or current spikes, affecting facilities such as interruptions in energy supply, resulting in economic loss for the companies that operate them. Currently, no SFCL Simulink model is implemented in the MATLAB database software. A Matlab / Simulink design for the resistive SFCL is suggested in this research paper. This article first presents a resistive style SFCL model using Matlab / Simulink and then replicates distinct fault kinds and analyzes are performed without SFCL and SFCL. The research demonstrates that SFCL reduces the amount of the fault current to a satisfying stage but also reduces the thermal temporary restoration voltage. SFCL also increases the temporary strength, energy performance and efficiency of energy scheme by spontaneously decreasing error flow. The research paper introduces an advanced current limiter implementation based on superconductivity. The theme of the paper revolves around the design of “resistive-type superconducting fault current limiters”.

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Section: Literature Reviewmentioning

confidence: 99%

Modeling of Resistive Type Superconducting Fault Current Limiter

Bohidar¹,

Sharma²

2019

IJEAT

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“…Where L is the length of the current lead; I is the rated current of the current lead; H T and L T are the working temperature at the two ends of the current lead; r , l and S are electrical resistivity, thermal conductivity and cross section of the current lead respectively [18]. AC loss occurred due to the alternating magnetic field is when the HTS apparatus carries ac current.…”

Section: ()mentioning

confidence: 99%

“…It would be significant under the perpendicular magnetic field. The whole AC loss occupies a certain proportion of heat loss when the HTS apparatus carries AC current, it should be minimized by optimization design to decrease the vertical component of magnet field imposed on the HTS tape, controlling the frequency of working current, and so on [18][19]. The leak-in heat from cryostat, which is determined by the performance of a cryostat, affected by its structure and material, is also an important section.…”

Section: ()mentioning

confidence: 99%

A Cooling Station for a 10 kV HTS Power Substation

Teng¹,

Dai²,

Song³

et al. 2015

Proceedings of the 2015 International Forum on Energy, Environment Science and Materials

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A 10 kV High Temperature Superconducting power substation with a cooling system was developed and has been put into operation in power distribution system for more than three years. The working conditions, heat resource and the distribution character of the four apparatuses working at the 10 kV/630 kVA HTS substation were analyzed. The heat load is distributed along the length for the cable for which thus a forced enclosed circulation system is necessary; while it is concentrated within only several cryostats for the other three HTS apparatus for which it is enough to cool only with an opened loop cooling system by consuming of liquid nitrogen. And an independent cooling system with refrigerator for the 1 MJ SMES is a good selection due to the different working temperature range. Based on the analysis and discussion, a concentrated evaporative cooling station which includes an opened loop cooling system without circulation and a forced circulation system with a closed circle was designed and constructed.

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