Power substation's domain modeling with UML — Essential class diagrams

Growing complexity of power system and its control and management tasks require more complex models, thereby forcing power system modeling towards object-oriented techniques. For a long time the non-existence of a standard method and modeling language had been a serious impediment to wider acceptance of object-oriented approach in power system modeling. The Unified Modeling Language (UML) is an object-oriented modeling language, currently in the process of world-wide standardization. Its possible applications include development of real-time software for control systems. In this paper some basic UML domain modeling techniques are presented as applied to a part of a power substation.