Characteristics of Resistive Fault Current Limiting Elements Using YBCO Superconducting Thin Film With Meander-Shaped Metal Layer

Ohsaki, Hiroyuki; Sekino, Masaki; Nonaka, Shigenori

doi:10.1109/tasc.2009.2019040

Cited by 10 publications

(8 citation statements)

References 10 publications

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“…In the electromagnetic analysis, the finite element method based on current vector potentials was used [8]. The governing equation of current vector potential T defined by J = ×T (J: current density) is given by the following equation:…”

Section: Numerical Analysis Methodsmentioning

confidence: 99%

“…A nonlinear E-J relation (E: electric field) based on the power law (2) was used for modelling the electromagnetic property of superconductors [8]. Temperature and magnetic flux density dependence of the critical current density JC was expressed by (3) [9,10], where T is the temperature and B is the component of magnetic flux density parallel to the surface of REBCO tape.…”

Section: Numerical Analysis Methodsmentioning

confidence: 99%

“…Additionally, the temperature dependence of , , and were considered in the analysis [11]- [14]. The analysis region of the REBCO tapes coinciding with substrate, cooling characteristics of liquid nitrogen [8], and heat sources originated in Joule loss in the Ag and superconductor layer were given by the boundary conditions.…”

Section: Numerical Analysis Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Three-Dimensional Thermal Analysis of an SFCL REBCO Coil Immersed in Liquid Nitrogen

Qian

Shiratani

Terao

et al. 2018

J. Phys.: Conf. Ser.

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Abstract.A resistive type superconducting fault current limiter (SFCL) using REBCO tapes has shown its advantages in power applications. However, the hotspot problem, which can be caused by the uniformity of critical current density JC over long-length of REBCO tapes, is still a threat to the SFCL safety. In this paper, we have studied the limiting performance and transient temperature rise distribution of a nonintersecting type non-inductive solenoidal SFCL REBCO coil using three-dimensional electromagnetic and thermal coupled FEM analysis. Firstly, we modelled a local degradation of JC and studied its influence on the transient temperature rise distribution during the over current. The results indicated that a narrow and severe JC degradation leads to the concentration of current and heat generation in the normal JC area, which is opposite to the case of a relatively wider and slighter JC degradation area. Furthermore, REBCO tapes with different thickness of substrate and Ag over-layer were analysed to study the influence on limiting performance and temperature rise. A thicker substrate leaded to a slower temperature rise because of its higher heat capacity, and the Ag over-layer of 4 μm showed better limiting performance and thermal stability because of its better thermal conductivity as well as uniform temperature rise and SN transition. IntroductionA resistive type superconducting fault current limiter (SFCL) using REBCO tapes has shown its advantages in limiting fault currents and improving the reliability of a power system for its compactness and rapid increase in resistance [1]- [4]. However, critical current density (JC) uniformity over longlength of REBCO tapes may lead to a local overheating and burning of the tapes, which are called as the hotspot phenomenon. In the previous research, two types of non-inductance solenoidal coils for resistive type SFCL were studied on their current limiting properties and recovery characteristics [5]. In addition, the electrical and thermal behaviours of several types of REBCO tapes during the fault current limitation were analysed and evaluated with a simulation model, consequently, tapes with no stabilizer were considered more suitable for constructing SFCLs [6]. In reference [7], a 2D JC distribution map of such REBCO tape with no stabilizer was measured using the scanning hall probe microscopy (SHPM).In this paper, we have studied the thermal characteristics of an REBCO coil for SFCL use during the fault current limitation with the electromagnetic and thermal coupled FEM analysis. The nonintersecting type non-inductive solenoidal winding [5] consisting of the stabilizer free REBCO tape was assumed for the REBCO coil, which concept is shown in figure 1. This coil consists of an inner and an outer winding that are wounded bifilarly and connected in series to reduce the inductance of the coil. A local

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Section: Numerical Analysis Methodsmentioning

confidence: 99%

Section: Numerical Analysis Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Three-Dimensional Thermal Analysis of an SFCL REBCO Coil Immersed in Liquid Nitrogen

Qian

Shiratani

Terao

et al. 2018

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…Iin the same period other no less important designs were also proposed by companies like Toshiba in Japan [16]. Then, in the next decade most of the research on SFCL based upon YBCO thin films was mainly dominated by Japan [17]- [20] and Korea [21] by pursuing some novel designs.…”

Section: Practical Implementation Of Sfcl: Field Test Status and mentioning

confidence: 99%

Resistive-Type Superconducting Fault Current Limiters: Concepts, Materials, and Numerical Modeling

Ruiz

Zhang

Coombs

2015

IEEE Trans. Appl. Supercond.

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Abstract-In recent years, major industrialized countries have began to be concerned about the need for developing strategies on the integration and protection of the growing power capacity of renewable source energies, attracting back their interest on the development and understanding of superconducting fault current limiters (SFCL). The reasons for this are simple: a SFCL may offer a rapid, reliable and effective current limitation, with zero impedance during normal operation, and an automatic recovery after the fault. Nowadays, most of the R&D projects have turned towards to the study of the resistive type SFCL due to their potential to be small, and the likely decrease in price of 2G coated conductors. Thus, in this paper we provide an updated review on the state of the art of resistive type SFCL, emphasizing on the different approaches for the numerical modelling of their local physical properties, as well as on the already tested experimental concepts. Comparison between the properties and characteristics of different resistive-type SFCL using different superconducting materials is presented.

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“…Different topologies for the FCL are introduced in literatures such as superconducting FCLs (SFCLs), solid state FCLs, flux-lock type FCLs and resonance type SFCLs [12][13][14][15][16][17][18][19]. Resonance type FCLs limit the fault current by using various topologies of series or parallel LC resonant circuits [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Parallel-Resonance-Type Fault Current Limiter

Naderi

Jafari

Hagh

2013

IEEE Trans. Ind. Electron.

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Abstract─This paper proposes a new parallel LC resonance type fault current limiter (FCL) that uses a resistor in series with the capacitor. The proposed FCL is capable to limit fault current magnitude near to pre-fault magnitude of distribution feeder current by placing the mentioned resistor in the structure of FCL. In this way, voltage of point of common coupling (PCC) does not experience considerable sag during the fault. In addition, the proposed FCL does not use superconducting inductor which has high construction cost. Analytical analysis for this structure is presented in detail and simulation results using PSCAD/EMTDC software are obtained to validate the effectiveness of this structure. Also, an experimental setup is provided to show the accuracy of analytic analyses and simulation results.

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Characteristics of Resistive Fault Current Limiting Elements Using YBCO Superconducting Thin Film With Meander-Shaped Metal Layer

Cited by 10 publications

References 10 publications

Three-Dimensional Thermal Analysis of an SFCL REBCO Coil Immersed in Liquid Nitrogen

Three-Dimensional Thermal Analysis of an SFCL REBCO Coil Immersed in Liquid Nitrogen

Resistive-Type Superconducting Fault Current Limiters: Concepts, Materials, and Numerical Modeling

Parallel-Resonance-Type Fault Current Limiter

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