OMASES-open market access and security assessment system: an approach to preventive dynamic security assessment and control

The paper reports on the activity of an EU funded research project named OMASES that concerns a preventive approach to dynamic security assessment (DSA) and control of large power systems. The aims of the project are presented. A short description of the hardware and software architecture for implementing on-line DSA are recalled. Some hints about the theoretical background for the specific applications within OMASES (TSA-transient stability assessment, VSA-voltage stability assessment, TS-training simulator and MS-market simulator) are described. Preliminary results of the prototyping phase are commented upon.