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A hydro unit commitment model using genetic algorithm

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2 Author(s)
Santos, E.F. ; Fac. of Electr. & Comput. Eng., Campinas State Univ., Brazil ; Ohishi, T.

This work presents an unit commitment model for hydroelectric power systems. The hydro unit commitment has great influence on the system's efficiency and it must be considered at the pre-dispatch level. The proposed approach determines a hydro unit startup/shutdown schedule and its corresponding power output schedule for the next day. The model formulated is a mixed optimization problem and a hybrid approach based on a genetic algorithms and a continuous non-linear optimization techniques. The methodology decomposes the problem in two sub-problems: the first one determines the startup/shutdown schedule using a genetic algorithms technique; and the second sub-problem calculates the power output of all committed hydro units selected by the genetic algorithms. This approach was applied to three hydroelectric systems.

Published in:

Evolutionary Computation, 2004. CEC2004. Congress on  (Volume:2 )

Date of Conference:

19-23 June 2004