Reliability modelling interactive techniques of power systems including wind generating units

Contents

Interactive computational techniques for reliability evaluation of power systems including wind generating units are presented. The fluctuating nature of energy produced by wind generators has a different effect on the overall system reliability than conventional units. The overall power system is divided into a subsystem containing the conventional units and into several subsystems containing the wind generating units. For each of these subsystems a generation availability model is built and the obtained models are combined to evaluate the loss of load expectation index for the time period of study. The developed methodology is illustrated by the analysis of a system based on a real power distribution system existing in a Greek island. Although the paper concentrates on wind energy sources, the general configuration of the developed techniques is applicable to generation systems containing any type of intermittent sources such as solar energy sources.

Übersicht

Die stochastische Energiedarbietung unterscheidet Windgeneratoren von konventionellen Generatoren und ist bei Zuverlässigkeitsuntersuchungen zu beachten. Hier wird das System in mehrere Teilsysteme zerlegt, deren eines die konventionellen Einheiten zusammenfaßt, während die übrigen den Windenergiekonvertern zugeordnet sind. Für jedes Teilsystem wird ein Modell der Verfügbarkoit gebildet, und daraus werden Erwartungswerte der Ausfallzeiten berechnet. Die Methode wird anhand einer ausgeführten Energieverteilung auf einer griechischen Insel dargestellt.