Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/28763
Title: Coordinated preventive control of transient stability with multi-contingency in power systems using trajectory sensitivities
Authors: Li, YH
Yuan, WP
Chan, KW 
Liu, MB
Keywords: Generation rescheduling
Multi-contingency
Optimal power flow
Trajectory sensitivity
Transient stability
Issue Date: 2011
Publisher: Elsevier
Source: International journal of electrical power and energy systems, 2011, v. 33, no. 1, p. 147-153 How to cite?
Journal: International journal of electrical power and energy systems 
Abstract: In this paper, the challenging multi-contingency transient stability constrained optimal power flow problem is partitioned into two sub-problems, namely optimal power flow (OPF) and transient stability control, solved in turn with conventional well trusted power system analysis tools instead of tackling it directly using a complicated integrated approach. Preventive multi-contingency transient stability control is carried out with generation rescheduling based on trajectory sensitivities using results obtained from a conventional transient stability simulation. A new iterative approach is proposed to optimally redistribute the generation from the critical machines to noncritical machines with the help of conventional OPF. Results on the New England 10-machine 39-bus systems demonstrate that the proposed method is capable of handling multiple contingencies and complex power system models effectively with solution quantity and time comparable with conventional integrated approaches.
URI: http://hdl.handle.net/10397/28763
ISSN: 0142-0615
DOI: 10.1016/j.ijepes.2010.06.017
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