Title :
Risk-based var allocation considering both voltage profile and security margin
Author :
Li, Yuan ; McCalley, James D.
Author_Institution :
CAISO, Folsom, CA, USA
Abstract :
This paper proposes an optimal Var resource allocation framework for power transmission system in such a manner that both voltage profile and security margin for future operation is considered. The risk index is used to represent the uncertainty in this framework. The conception of Var gap is proposed to cover the voltage profile issue and the security margin issue when the Var allocation is performed. This problem is formulated as a mixed integer nonlinear programming problem, and the generalized Benders decomposition method is used to solve it. The approach is illustrated using the AEP 14-bus test system.
Keywords :
integer programming; nonlinear programming; power system security; power transmission planning; reactive power; resource allocation; risk analysis; AEP 14-bus test system; generalized Benders decomposition method; mixed integer nonlinear programming; optimal Var resource allocation framework; power transmission planning; risk index; security margin; uncertainty representation; voltage profile; National security; Power generation economics; Power system security; Power transmission; Reactive power; Reactive power control; Resource management; USA Councils; Uncertainty; Voltage; Benders decomposition; decision making; risk; security margin; transmission planning; uncertainty;
Conference_Titel :
Power & Energy Society General Meeting, 2009. PES '09. IEEE
Conference_Location :
Calgary, AB
Print_ISBN :
978-1-4244-4241-6
DOI :
10.1109/PES.2009.5275694