Enhanced NERC TPL-003 steady state compliance studies at American Transmission Company

This paper describes enhancements to ATC´s cascading study criteria and the implementation of a fast automated process using POM/OPM software for conducting comprehensive steady state multiple element contingency screening and cascading analysis, finding mitigations to restore the system to be within emergency and/or normal performance limits, and automatically tabulating significant results and summaries in spreadsheets. The new process provides a better definition of the total load at risk. It is utilized as a part of ATC´s NERC TPL-003 compliance studies starting from 2013.