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Title: Optimal power flow with transient stability constraints
Authors: Sun, JQ
Fang, DZ
Chung, TS
Keywords: Electric power engineering
Optimal control
Optimal power flow
Power system
Transient stability
Issue Date: 2005
Publisher: 中国电机工程学会
Source: 中国电机工程学报 (Proceedings of the Chinese Society for Electrical Engineering), 2005, v. 25, no. 12, p. 12-17 How to cite?
Journal: 中国电机工程学报 (Proceedings of the Chinese Society for Electrical Engineering) 
Abstract: This paper proposes a new method for solutions of optimal power flow with transient stability constraints (OTS). Instead of directly tackling the difficult problem, the OTS is equivalently converted into two optimal sub-problems. One is conventional OPF and another is optimal control. And then, the two optimal sub-problems are solved by an alternate iteration approach. The outstanding advantage of the method is that the computation burden can be significantly reduced with better convergence. The method converts the constraints represented by the differential-algebraic equation into inequality constraints of control variables. And the number of the inequality constraints is the same as that of contingencies considered. Therefore, the method can deal with multi-contingencies simultaneously. The optimal power flow can be solved by other nonlinear programming methods with the same order of computation complexity. Test results on the 10-generator New England test system are given to verify efficiency, effectiveness and reliability of the method.
ISSN: 0258-8013
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