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|Type:||Artigo de periódico|
|Title:||Unit Commitment Of Hydro Dominated Systems|
|Author:||Arce Encina A.S.|
|Abstract:||This paper is concerned with the unit commitment of hydro generating units on an hourly basis throughout a single day. A performance criterion that takes into consideration variations in tailrace elevation, penstock head loss and turbine-generator efficiency is suggested as the objective function for the optimization model. A heuristic procedure based on Lagrangian Relaxation was implemented to solve the problem. The approach was then tested on a system composed of sixteen hydro plants, one hundred generating units, and an installed capacity of 21,933 MW, in the Brazilian power system. The scheduling of generation verified for a typical day was used for comparison with the solution proposed by this procedure. The results show a significant improvement in terms of hydro conversion efficiency. © 2008 The Berkeley Electronic Press. All rights reserved.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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