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An energetic operation policy using Fuzzy Controllers for maximization of benefits in the brazilian hydrothermal power system

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3 Author(s)
Rabelo, R.A.L. ; Electr. Eng. Dept., Univ. of Sao Paulo, Sao Carlos, Brazil ; Carneiro, A.A.F.M. ; Braga, R.T.V.

This paper aims to determine an energetic operation policy (EOP) for hydrothermal power systems. In order to determine the EOP, the optimal solution of a deterministic hydrothermal scheduling model was utilized. The EOP was calculated to follow the trajectories obtained by the optimization model. The resulting trajectories were parameterized in terms of the system total energy storage. Using the system energy storage, it is possible to obtain, for each reservoir, the set of points from which a curve can be adjusted using the Takagi-Sugeno Fuzzy Controller. The EOP proposed through the Takagi-Sugeno Fuzzy Controller is used in simulation models to allow comparisons with the adopted EOP in practice in Brazil (parallel policy). As it will be shown in this paper, the proposed EOP using fuzzy controllers maximizes the hydroelectric generation and, as consequence, minimizes the thermoelectric generation cost in the hydrothermal power systems.

Published in:

PowerTech, 2009 IEEE Bucharest

Date of Conference:

June 28 2009-July 2 2009