Omases: a dynamic security assessment tool for the new market environment

The paper presents the efforts and results of a large consortium of European industries, research centers and Universities involved in a EU research project named OMASES in the field of power system dynamic security assessment (DSA). The overall structure of an on-line DSA tool including TSA transient stability assessment, VSA - voltage stability assessment, TS training simulator and MS - market simulator is reported. Some basic assumptions and methodological aspects of the tool are presented considering its possible use within actual or future energy management systems under the new electric market environment. Scenarios set up for the validation phase and results are reported with reference to the Italian test facility.