Artículos de revistas
Unit Commitment Of Hydro Dominated Systems
Registro en:
International Journal Of Emerging Electric Power Systems. , v. 9, n. 4, p. - , 2008.
1553779X
2-s2.0-55549127576
Autor
Arce Encina A.S.
Filho S.S.
Ohishi T.
Cicogna M.A.
Institución
Resumen
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. 9 4
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