Title :
Probabilistic dynamic security assessment of power systems-I: Basic model
Author :
Wu, Felix F. ; Tsai, Yu-kun
fDate :
3/1/1983 12:00:00 AM
Abstract :
A comprehensive framework for power system security assessment which incorporates probabilistic aspects of disturbances and system dynamic responses to disturbances is presented. Standard mathematical models for power system (steady-state) power flow analysis and transient stability (dynamic) analysis are used. A linear vector differential equation is derived whose solution gives the probability distribution of the time to insecurity. The coefficients of the differential equation contain the transition rates of system structural changes and a set of transition probabilities defined in terms of the steady-state and the dynamic security regions. These regions are defined in the space of power injections. Upper and lower bounds on the time to insecurity distribution are obtained.
Keywords :
Power networks and systems; Power system security; Differential equations; Mathematical model; Power system analysis computing; Power system dynamics; Power system modeling; Power system security; Power system stability; Power system transients; Steady-state; Transient analysis;
Journal_Title :
Circuits and Systems, IEEE Transactions on
DOI :
10.1109/TCS.1983.1085344