Fast fault screening methodology for transient stability analysis of bulk power systems

Fast Fault Screening (FFS) methodology has the capability to quickly scan thousands of potential fault locations, identify top fault locations using a heuristic approach, and rank them based on analytical computations. Planned high levels of wind energy penetration may result in more severe stability problems, especially voltage issues due to the output variability and intermittency of wind energy generation. The present paper describes enhancements made to the Fast Fault Screening concept that will enable it to identify and rank the most severe three-phase fault locations during transient stability studies- both angular and voltage. The enhanced approach considers rotor angle stability, voltage deviation during system faults, and reactive power variation. The approach was tested using three Eastern Interconnection planning cases.