DocumentCode :
466252
Title :
Fast and Accurate Method for Dynamic Security-constrained Economic Dispatch via Sensitivity Analysis
Author :
Nguyen, T.T. ; Karimishad, A.
Author_Institution :
Sch. of Electr., Electron. & Comput. Eng., Univ. of Western Australia, Crawley, WA
fYear :
2007
fDate :
24-28 June 2007
Firstpage :
1
Lastpage :
8
Abstract :
A new approach which is fast and accurate for including the transient stability constraints in the optimal power flow is presented. The context is that of applications in economic dispatch with dynamic security constraints. The method draws on the sensitivity analysis of maximum relative rotor angles with respect to generator active-powers. The analysis is based on perturbations of the active-powers of individual generator units together with time-domain transient stability simulation for each perturbation to derive dynamic security constraints for including in the OPF. The constraints are linear inequalities expressed in terms of generator active-powers. The number of the constraints is relatively low, and equal to the number of generator units less one, with one generator being the reference generator. The time-domain transient stability simulations are performed outside the OPF calculation. The method proposed lends itself to the application of parallel computing for forming the dynamic security constraints.
Keywords :
load flow; power generation dispatch; power system security; power system transient stability; sensitivity analysis; time-domain analysis; dynamic security-constrained economic dispatch; generator active-powers; maximum relative rotor angles; optimal power flow; parallel computing; sensitivity analysis; time-domain transient stability simulation; Analytical models; Computational modeling; Load flow; Power generation economics; Rotors; Security; Sensitivity analysis; Stability analysis; Time domain analysis; Transient analysis; Dynamic security; economic dispatch; optimal power flow; sensitivity analysis; transient stability;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Engineering Society General Meeting, 2007. IEEE
Conference_Location :
Tampa, FL
ISSN :
1932-5517
Print_ISBN :
1-4244-1296-X
Electronic_ISBN :
1932-5517
Type :
conf
DOI :
10.1109/PES.2007.385900
Filename :
4275666
Link To Document :
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