Electrothermal Modeling of Coated Conductor for a Resistive Superconducting Fault-Current Limiter

Nemdili, S.; Belkhiat, S.

doi:10.1007/s10948-012-1895-4

Cited by 12 publications

(9 citation statements)

References 9 publications

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“…A sinusoidal waveform with amplitude 9000*√2A flows in the circuit as shown in Fig.2. The temperature of the superconductor during the normal operation remains constant at 77K which is the temperature of LN 2 [12].The SFCL retains its state in the Superconducting region with a negligible change of resistance during the normal operation. …”

Section: Amentioning

confidence: 99%

Modelling and analysis of resistive Superconducting Fault Current Limiter

Dutta

Babu

2014

Proceedings of the 2014 IEEE Students' Technology Symposium

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Superconducting Fault Current Limiters (SFCLs) are used in power system network to mitigate the overcurrent and its prominent effects. Nowadays, Coated Conductors (CCs) are widely used for novel design of SFCL for such applications. In this paper, comparative study on the operational characteristics of Resistive-SFCL based on BSCCO and YBCO Coated Conductors under fault condition is analyzed for an 110kV/9kA network. Also Electro-thermal Model of Coated Conductor is studied in MATLAB software. To verify the effectiveness of the proposed Resistive-SFCL, several case studies of Coated Conductors have been carried out in MATLAB. The results show the choice of optimal configuration of CCs as SFCL which effectively improves the thermal stability and current limiting characteristics under fault condition in the network.

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Section: Amentioning

confidence: 99%

Modelling and analysis of resistive Superconducting Fault Current Limiter

Dutta

Babu

2014

Proceedings of the 2014 IEEE Students' Technology Symposium

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“…Therefore, it is necessary to choose an optimal location for this device; a bad location can reduce the performance of the power system. A statistical study will be given in the final document so as to choose only one location of the limiter superconductor with a single impedance value because, as we can see in Figure (7), depending on the type of defect studied, several locations of the limiter are possible with several impedance values. We were concerned more particularly in this study by the choice of symmetrical defect by which it is the most unfavorable case for the stability of the networks.…”

Section: B Transient Stability Assessment With Sfcl In Series With Transmission Linementioning

confidence: 99%

“…In this context, several simulation works have been proposed. In some of these works, the behavior of the superconductor is simulated as a vari-impedance [7], [8][9] where the superconducting material changes from nondissipative state characterized by a zero impedance in the rated regime of the network to a very dissipative state characterized by a high impedance in the case of faults that can appear during the operation of the electrical network.…”

Section: Introductionmentioning

confidence: 99%

Improvement of the Transient Stability of a 14-bus Network Using a Superconducting Fault-Current Limiter SFCL

Belkhiri¹,

Bouroubi²,

Harrabi³

2020

AEM

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This study presents a new strategy for implementing the superconducting fault current limiter SFCL in order not only to limit short - circuit currents but also to improve the stability of electrical networks in the presence of faults. The calculation of the impedance that the limiter must introduce into the test network at the moment of the failure is obtained from a three-dimensional computation code, developed and implemented under MATLAB environment where the formulation in magnetic vector potentials A and scalar potential Electric V is adopted to solve the electromagnetic problem and the heat diffusion formulation is adopted also to solve the thermal problem. The coupling is ensured by an alternating algorithm and the numerical resolution of the problem is ensured by the method of the finite volumes in its three-dimensional version in order to avoid certain problems of numerical convergence linked to the strongly nonlinear character of the problem to be solved. The modeling of the network tests will be made by PSAT under the environment MATLAB.

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“…As the current increases above the critical current, conduction losses increase, which leads to elevated superconductor temperature over time. As discussed by Blair [27] and Nemdili [28], the duration of this process depends on magnitude of the fault current, heat transfer to the cryogenic fluid, and the physical properties of the superconducting material. Configuring quench management for the system is illustrated Figure 9.…”

Section: Superconducting Fault Current Limiter (Sfcl) Sensitivity Modelmentioning

confidence: 99%

“…Each superconducting material undergoes quenching at a different rate. For example, BSCCO (Bi-2223) has a faster transition time that YBCO [28]. Therefore, if YBCO is selected for the primary distribution material, a BSCCO fault current limiter sized with similar quench current ratings will quench faster and localize the quench event within that device.…”

Section: Superconducting Fault Current Limiter (Sfcl) Sensitivity Modelmentioning

confidence: 99%

Turboelectric Distributed Propulsion Protection System Design Trades

Ross¹,

Armstrong²,

Blackwelder³

et al. 2014

SAE Technical Paper Series

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The Turboelectric Distributed Propulsion (TeDP) concept uses gas turbine engines as prime movers for generators whose electrical power is used to drive motors and propulsors. For this NASA N3-X study, the motors, generators, and DC transmission lines are superconducting, and the power electronics and circuit breakers are cryogenic to maximize efficiency and increase power density of all associated components. Some of the protection challenges of a superconducting DC network are discussed such as low natural damping, superconducting and quenched states, and fast fault response time. For a given TeDP electrical system architecture with fixed power ratings, solid-state circuit breakers combined with superconducting fault-current limiters are examined with current-source control to limit and interrupt the fault current. To estimate the protection system weight and losses, scalable models of cryogenic bidirectional currentsource converters, cryogenic bidirectional IGBT solid-state circuit breakers (CBs), and resistive-type superconducting fault current limiters (SFCLs) are developed to assess how the weight and losses of these components vary as a function of nominal voltage and current and fault current ratings. The scalable models are used to assess the protection system weight for several trade-offs. System studies include the tradeoff in fault-current limiting capability of SFCLs on CB mass, alongside the fault-current limiting capability of the converter and its impact on CB fault-current interruption ratings and weight.

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Electrothermal Modeling of Coated Conductor for a Resistive Superconducting Fault-Current Limiter

Cited by 12 publications

References 9 publications

Modelling and analysis of resistive Superconducting Fault Current Limiter

Modelling and analysis of resistive Superconducting Fault Current Limiter

Improvement of the Transient Stability of a 14-bus Network Using a Superconducting Fault-Current Limiter SFCL

Turboelectric Distributed Propulsion Protection System Design Trades

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