15
PSERC
Analysis of Vendor Survey
•Most vendors use a full-scale, time domain simulation computational engine together with either an extended equal area criterion approach or a transient energy function approach to perform transient stability assessment. One vendor uses a specialized approach called the Single Machine Equivalent method.
•All but one tool provide the ability to pre-filter
critical contingencies from a
given list of contingencies.
•All the tools provide an interface to real time data using a state estimator.
•All the tools except one provide the ability to be automatically triggered following a network topology change.