Applications of an HTS thin film switching element in the inductive current limiter

Meerovich, V.; Beilin, V.; Vajda, István

doi:10.1016/s0921-4534(02)02229-3

Cited by 5 publications

(11 citation statements)

References 2 publications

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“…One recent example of the return to the initial design of the inductive FCL is the device, called by its authors "hybrid," that combines a normal metal secondary coil with an YBCO bulk switching element [5], [22]. The next step is the use of a superconducting secondary coil with a superconducting switching element [30].…”

Section: B Inductive Designmentioning

confidence: 99%

“…In this respect, the original design with a specially fabricated switching element [30] has an advantage as it can be designed for an entire and homogeneous transition. The switching element can be fabricated as a resistive FCL.…”

Section: Comparison Of Inductive and Resistive Fclsmentioning

confidence: 99%

“…Let us demonstrate the basic principles of the evaluation of parameters of an FCL on the example of an inductive FCL employing a secondary HTS coil short-circuited by an HTS thin film switching element [30]. The procedure of the calculation of the FCL parameters includes three stages.…”

Section: Calculation Of Parameters Of An Inductive Fclmentioning

confidence: 99%

“…The switching element consists of parallel and in series connected thin film structures: HTS films are deposited on dielectric substrates and covered by a well conducting metal. The resistance of the element in the limitation regime is determined by several conditions [30]. One of them requires that the device impedance in the limitation regime should be close to the impedance with open-circuit secondary coil (11) The estimations show that is sufficient to provide 96% of the impedance with the open-circuit secondary coil [29].…”

Section: Calculation Of Parameters Of An Inductive Fclmentioning

confidence: 99%

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Superconducting FCL: Design and Application

Sokolovsky

Meerovich

Vajda

et al. 2004

IEEE Trans. Appl. Supercond.

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Design, parameters, and application areas of a superconducting fault current limiter (FCL) are analyzed on the basis of the requirements of power systems. The comparison of resistive and inductive designs is carried out. An example of the effective application of FCLs in distribution substations is considered and the gain from the FCL installation is discussed. It is shown that an FCL not only limits a fault current but also increases the dynamic stability of the synchronous operation of electric machines. The calculation procedure of the parameters of an inductive FCL for a specific application case is described.Index Terms-Fault current limiter (FCL), high-temperature superconductor (HTS), power system.

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Section: B Inductive Designmentioning

confidence: 99%

Section: Comparison Of Inductive and Resistive Fclsmentioning

confidence: 99%

Section: Calculation Of Parameters Of An Inductive Fclmentioning

confidence: 99%

Section: Calculation Of Parameters Of An Inductive Fclmentioning

confidence: 99%

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Superconducting FCL: Design and Application

Sokolovsky

Meerovich

Vajda

et al. 2004

IEEE Trans. Appl. Supercond.

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“…Resistance of the contacts was less than 0.006 Ω. The operation of the HTS coil with the thin film switching element was previously investigated in a model of an inductive FCL [17].…”

Section: Experimental Modelmentioning

confidence: 99%

Experimental study of a transformer with superconducting elements for fault current limitation and energy redistribution

Meerovich

2005

Cryogenics

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Numerous proposed and developed superconducting fault current limiters and self-limiting transformers limit successfully fault currents but do not provide uninterrupted supplying of consumers. A design investigated in the work combines the functions of a conventional transformer with the functions of fast energy redistribution and fault protection. The device constitutes a transformer containing an additional high-temperature superconducting (HTS) coil short-circuited by a thin film HTS switching element. Fault current limitation and redistribution of the power flow to a standby line are achieved as a result of a fast transition of the superconducting switching element from the superconducting into the normal state. Transient and steady-state characteristics were experimentally investigated. A mathematical model of the device operation was proposed, and the calculated resultswere found to be in good agreement with the experimental data. The application field and basic requirements to such devices were discussed and it was shown that the proposed device meets these requirements.

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High-temperature superconducting fault current limiters (FCLs) for power grid applications

Meerovich

2015

Superconductors in the Power Grid

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Applications of an HTS thin film switching element in the inductive current limiter

Cited by 5 publications

References 2 publications

Superconducting FCL: Design and Application

Superconducting FCL: Design and Application

Experimental study of a transformer with superconducting elements for fault current limitation and energy redistribution

High-temperature superconducting fault current limiters (FCLs) for power grid applications

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