This work is about load modeling in power system restoration after blackouts. The behaviour of residential thermostatically controlled loads is analyzed, since they are the main responsible for the growth of demand after reenergization. Load modeling is implemented using Oriented Object Programming (OOP). OOP techniques take advantage of physical modeling of residential thermostatically controlled equipment and use a reduced number of classes to represent them. Load aggregation is also implemented using "residence" and "feeder" classes in an hierarquical structure.
Power system restoration; load modeling; object oriented programming; cold load pick-up
