Power System Posturing

An operator needs to ensure that a power system can ride through any contingency without losing its angular stability glue keeping the generators together. The main question that the operator needs to answer is if the system will be OK after any credible contingency and to the extent that it is not, what actions he or she needs to take to posture the system so that it is operationally feasible. The process of posturing the power system for angular stability involves developing preventive and corrective measures without any manual interaction from operators after the contingencies. There are two sets of technologies needed for posturing angular stability: (i) angular stability assessment; and (ii) implementation of angular stability limits and remedial action schemes.