LOCALISATION DES DÉFAUTS D'ONDES PROGRESSIVES À TROIS EXTRÉMITÉS BASÉE SUR LE DÉCOUPLAGE ÉLECTROMAGNÉTIQUE
DOI :
https://doi.org/10.59277/RRST-EE.2026.2.3Mots-clés :
Trois extrémités, Vitesse de propagation de l'onde, Heure d'arrivée, Localisation du défaut, Lignes de transmissionRésumé
Cette étude présente une nouvelle méthode de localisation de défauts, basée sur l'analyse des ondes progressives à trois extrémités (TW-FL), pour les lignes de transport d'énergie, améliorant ainsi la précision et la rapidité de la localisation. Contrairement aux approches traditionnelles, elle s'affranchit des mesures de vitesse des ondes progressives et des paramètres de la ligne en analysant les surtensions à trois extrémités et en exploitant le temps d'arrivée (TOA) des ondes induites par le défaut pour en déterminer la position. Pour la validation, la vitesse déduite implicitement à partir de la formulation TOA a été comparée à sa valeur théorique, avec une précision d'estimation de 99,96 %, ce qui confirme la cohérence interne et la robustesse du modèle. Ce dernier a atteint des erreurs de localisation maximales et minimales de 0,36 % et 0,0803 %, respectivement, sur une distance de plus de 100 km depuis l'extrémité P, démontrant une précision supérieure à celle des modèles existants. Des simulations réalisées sous PSCAD/EMTDC dans diverses conditions de défaut ont confirmé sa robustesse, tandis que la validation sur le système WSCC à 9 nœuds a attesté de sa rapidité et de sa fiabilité, contribuant à l'amélioration des performances du réseau et à la réduction des coupures de courant.
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(c) Copyright REVUE ROUMAINE DES SCIENCES TECHNIQUES — SÉRIE ÉLECTROTECHNIQUE ET ÉNERGÉTIQUE 2026
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