A novel single-ended fault identification algorithm for full selective protection strategy
| Autor: | Alberto Bertinato, Michel Kieffer, Paul Verrax, Bertrand Raison |
|---|---|
| Přispěvatelé: | Laboratoire des signaux et systèmes (L2S), CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), SuperGrid Institute SAS, Laboratoire de Génie Electrique de Grenoble (G2ELab ), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
HVDC
Multi-terminal Computer science 020209 energy 020208 electrical & electronic engineering 02 engineering and technology Hardware_PERFORMANCEANDRELIABILITY Fault (power engineering) Grid protection fault localization Fault detection and isolation fault detection law.invention Identification (information) parameter identification [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI] [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing Relay law Parametric model 0202 electrical engineering electronic engineering information engineering Transient (oscillation) Algorithm Parametric statistics |
| Zdroj: | 15th International Conference on Developments in Power System Protection (DPSP 2020) 15th International Conference on Developments in Power System Protection (DPSP 2020), Mar 2020, Liverpool, United Kingdom. 010 (6 pp.)-010 (6 pp.), ⟨10.1049/cp.2020.0059⟩ |
| DOI: | 10.1049/cp.2020.0059⟩ |
| Popis: | International audience; While more and more HVDC point-to-point connections are initiated worldwide, the emergence of multi-terminal grids still faces important hurdles among which the protection is seen as particularly challenging. We propose a parametric single-ended fault identification algorithm to be used in fullyselective fault-clearing strategies. Such strategies are preferential for meshed grids as they limit the impact of the fault. The method is able to determine whether the line monitored by a relay is faulty or not using very few local measurements, making ultra-fast fault identification possible. Contrary to most existing approaches, extra inductances are not required to distinguish between faults occurring on the protected line and elsewhere. When a fault is suspected, the proposed algorithm estimates the parameters that characterize the fault, namely the fault distance and impedance. The estimation process uses a parametric model describing the voltage and current evolution just after the fault occurrence based on the fault parameters.The identification of the faulty line is then based on the size of the confidence region of the estimated fault parameters. Use-cases and performances of the algorithm for a fournode meshed grid are studied using ElectroMagnetic Transient (EMT) simulations. |
| Databáze: | OpenAIRE |
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