Event-based transient categorization and analysis in electric power systems

Power system transients cause problems and disturbances that might be harmful to electronic equipment. ’ However, ve y little have been done to systematically understand and analyze power system transients. There is also a lack of computational effective methods as transients are short and associated with a wide range of events and system conditions. This paper addresses the following issues: (1) to categorize the power system tmnsients according to their underlying causes; (2) to propose a signal pmcessing method, ESPRIT, for the analysis of a range 06 transients due to different causes. Experimental results are included to evaluate the usefulness of ESPRIT in power system transient analysis. Remaining open issues for research are also discussed.