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Security constrained dynamic dispatch of real power for thermal groups

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5 Author(s)
M. Innorta ; Centro Ricerca di Automatica, ENEL, Cologno Monzese, Italy ; P. Marannino ; G. P. Granelli ; M. Montagna
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A dynamic approach to the real power dispatch of thermal generating units, suitable for time periods characterized by high rates of load variation, is presented. A discrete formulation of the dispatch problem is adopted, with step variations of the loads. Dynamic constraints on the rate of change of the present loading output of thermal units are added to the ordinary constraints of the static approach. Costs associated with the act of quickly changing the thermal generation are included in the model. The solution of the problem uses a modified version of the Han-Powell algorithm in a compact-reduced model formulation. A sparsity technique used in the construction and in the updating of the Hessian matrix of the Lagrangian function, allows the solution of large-scale problems arising from a minute subdivision of the dispatch interval in large electrical systems

Published in:

IEEE Transactions on Power Systems  (Volume:3 ,  Issue: 2 )