Analyse et commande de la stabilité de petits signaux dans les systèmes electriques avec intégration des sources hybride (PV+éolienne)

Abstract

Since twenty years, power systems are required to operate at full power and often to limits the stability, stability’s improving for small perturbations, in particular damping of oscillations, have become a target priority. This work is entitled analysis and command of small signal stability in power systems with integration of hybrid sources (PV + wind). This topic is a current and interesting especially with the development of distribution networks subject. New source, especially wind turbines and solar panels, are in cogeneration with other traditional sources in the same network which puts into question its dynamic stability. This work focuses on the impact of a (wind-PV) on the hybrid system stability as Small signal stability subjected of small perturbations of a multi-machine system with a hybrid system. The wind farm will be considered as an active source equipped with an asynchronous generator type (SCIG) and PV is considered a passive load which injects power into the grid. This allowed us to consider a hybrid system. The ultimate goal is to improve the dynamic behavior of the system with a feedback control static condition, in order to have an optimal damping of the oscillations seem to small perturbations.