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Communication Dans Un Congrès Année : 2015

Multiscale model of a resistive-type superconducting fault current limiters based on 2G HTS coated conductors

Résumé

Superconducting fault current limiter (SFCL) is one of the most promising applications of second generation (2G) high temperature superconductor (HTS) coated conductors (CCs). In order to plan the integration of SFCLs in real power systems, models of SFCLs should be included in power system transient simulators. In this work, we developed a model of a resistive-type SFCL based on 2G HTS CCs in the EMTP-RV software, which is a reference in power system transient simulation, widely used by power utilities. The model reproduces the complete 3D electro-thermal dynamics of the quench, and therefore allows including critical current inhomogeneities along the length of the tape. Both the electrical and thermal phenomena are modeled using only electric circuits components. All nonlinear properties of the materials entering in the composition of CCs are taken into account. Finite element simulations were performed to validate the circuit model, which can be qualified as “multiscale” since it can at the same time model local quench dynamics of 2G HTS CCs (microscopic scale) and the global impact of the SFCL on the power system (macroscopic/system-scale) when the later operates in real network conditions. The model was used to compare the minimum length of HTS CCs needed to build a SFCL depending on the tape architecture (thickness of the various layers, types of materials used, interfacial resistance between HTS and stabilizer, etc.) for various overcurrent levels. The model was also used to investigate the benefits of 2G HTS CCs with low and high normal zone propagation velocity (NZPV) on the performance of SFCL in comparison with commercially available 2G HTS CCs with low NZPV. Our results show that high NZPV tape increases the quench uniformity and the robustness of the limiter, especially when the current level is close to the critical current (Ic) of the weakest region of the tape.
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Dates et versions

hal-01197264 , version 1 (11-09-2015)

Identifiants

  • HAL Id : hal-01197264 , version 1

Citer

Charles-Henri Bonnard, Frédéric Sirois, Christian Lacroix, Gaëtan Didier, Bruno Douine. Multiscale model of a resistive-type superconducting fault current limiters based on 2G HTS coated conductors. EUCAS 2015 - 12th European Conference on Applied Superconductivity, Sep 2015, Lyon, France. p. 79, id. 3M-LS-O2.x. ⟨hal-01197264⟩
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