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Dynamic-security-constrained multiobjective generation dispatch of longitudinally interconnected power systems using bicriterion global optimization

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5 Author(s)
Chang, C.S. ; Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore ; Liew, A.C. ; Xu, J.X. ; Wang, X.W.
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This paper is devoted to the dynamic performance assessment and model reduction for a longitudinally interconnected power system, with special emphasis on small-perturbation stability. A 2-machine equivalent is established for representing intersubsystem behavior of the test system, that is valid over a large range of interconnected system operation. Eigenvalue sensitivity-based constraints are derived to represent variations of security levels with MW transfers between subsystems. These constraints can be stored in simple lookup tables and are used to extend the authors work on a bicriterion optimization approach for determining the most appropriate generation dispatch solution taking into account the fuel and environmental costs, and to provide security constraints during optimization

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Power Systems, IEEE Transactions on  (Volume:11 ,  Issue: 2 )