DYNAMIC BEHAVIOR ANALYSIS OF LOAD FREQUENCY CONTROL IN POWER SYSTEMS WITH HYBRID POWER PLANTS
DOI :
https://doi.org/10.59277/RRST-EE.2025.3.7Mots-clés :
Système électrique interconnecté, Centrale à vapeur, Centrale à gaz, Centrale hydroélectrique, Contrôle de la fréquence de chargeRésumé
Dans les systèmes électriques, le maintien d'une fréquence quasi constante est essentiel à un fonctionnement stable. La boucle de régulation secondaire joue un rôle crucial dans la régulation de la fréquence du système, garantissant son maintien à sa valeur nominale ou proche de celle-ci. De plus, cette boucle de régulation est responsable du maintien des échanges d'énergie programmés entre les zones de régulation interconnectées via les lignes de raccordement. Cette étude se concentre sur l'analyse et la simulation de la réponse dynamique des systèmes électriques interconnectés dans diverses configurations. Les zones de systèmes électriques examinées comprennent les centrales à vapeur, hydroélectriques et à gaz. Des simulations MATLAB sont réalisées sur des modèles de systèmes électriques à deux et trois zones. Les résultats de la simulation temporelle sont ensuite évalués par l'analyse des valeurs propres de la matrice du système dans différentes conditions d'exploitation. Les résultats indiquent qu'après une variation brutale de la demande de charge dans des zones isolées, les centrales à gaz présentent la plus faible déviation de fréquence (statisme). En revanche, les centrales hydroélectriques présentent la plus forte chute de fréquence. De plus, les centrales à gaz présentent moins de variations en réponse aux variations de charge que les deux autres types de sources de production.
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Ce travail est disponible sous licence Creative Commons Attribution - Pas d'Utilisation Commerciale - Pas de Modification 4.0 International.
