Title :
A new approach to dynamic contingency selection
Author :
Chang, Chung-Liang ; Hsu, Yuan-Yih
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A novel approach using the first iteration of FDLF (fast decoupled load flow) and the first iteration of AESOPS (Analysis of Essentially Spontaneous Oscillations in Power Systems) has been proposed for dynamic contingency selection. The proposed method uses the first iteration of FDLF to determine the system operating condition and then uses the first iteration of AESOPS to estimate worst-damped eigenvalues. To demonstrate the effectiveness of the proposed method, outage events on the transmission of the Taiwan power system are studied. It is found that an accurate ranking list can be achieved very efficiently by using the developed first-iteration method. The computational burden incurred in dynamic security assessment can thus be alleviated since only those cases at the top of the ranking list require detailed dynamic stability analyses.<>
Keywords :
iterative methods; load flow; power system control; power system protection; Taiwan; dynamic contingency selection; dynamic stability; eigenvalues; fast decoupled load flow; iteration; outage; power system security; ranking list; Eigenvalues and eigenfunctions; Iterative methods; Load flow; National security; Power system analysis computing; Power system dynamics; Power system security; Power system transients; Stability; Steady-state;
Conference_Titel :
Power Industry Computer Application Conference, 1989. PICA '89, Conference Papers
Conference_Location :
Seattle, WA, USA
DOI :
10.1109/PICA.1989.39001