“21st PSCC 2020 papers submission and review platform

Full Program »

Certification and Prediction of Post-Disturbance States in Dynamic Security Assessment

View File

Dynamic security assessment usually involves the simulation of system dynamics under large disturbances. The instant large disturbance occurs, the post-disturbance state of the system could deviate significantly from the pre-disturbance one. It is desirable and necessary to develop an efficient method to certify the existence of state and predict the approximate post-disturbance state because: (1) faster warning can be made in online assessment; and (2) the dynamic simulator can be given better initial values to calculate precise solutions, which prevents convergence failure brought on by poor initial values. We propose a novel approach for efficiently certifying and predicting the post-disturbance states in dynamic security assessment. Based on the fixed-point power flow mapping approach applied to salient pole generator models, the criterion for determining the existence and uniqueness of the post-disturbance solution is derived, and the bounds of post-disturbance solution can be rigorously characterized.


Bai Cui    
National Renewable Energy Laboratory
United States

Rui Yao    
Argonne National Laboratory
United States

Feng Qiu    
Argonne National Laboratory
United States


Powered by OpenConf®
Copyright ©2002-2014 Zakon Group LLC