2. Real-Time Contingency Analysis for Post-contingency SOL Exceedance Monitoring

This chapter introduces the implementation of Peak RC’s Real-Time Contingency Analysis (RTCA) function with hundreds of RAS models included for the Western Electricity Coordinating Council (WECC) system security assessment for every 5 min. It presents some custom features developed for Reliability Coordinator (RC) to intelligently sort out the important, actionable information. In addition, this chapter discusses the Peak RC’s monitoring methodology and procedures, and how they shape the RC’s actions when dealing with post-contingency System Operating Limit (SOL) exceedances and risk of cascading outages. Finally, the RTCA software enhancements for autonomous cascading analysis and Interconnection Reliability Operating Limits (IROL) monitoring are proposed to improve detection and validation of potential IROL conditions.