Mixed-integer nonlinear approach for the optimal scheduling of a head-dependent hydro chain

Catalão, João Paulo da Silva; Pousinho, Hugo Miguel Inácio; Mendes, Victor

http://hdl.handle.net/10400.21/705

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Authors

Catalão, João Paulo da Silva

Pousinho, Hugo Miguel Inácio

Mendes, Victor

Abstract(s)

This paper is on the problem of short-term hydro scheduling (STHS), particularly concerning a head-dependent hydro chain We propose a novel mixed-integer nonlinear programming (MINLP) approach, considering hydroelectric power generation as a nonlinear function of water discharge and of the head. As a new contribution to eat her studies, we model the on-off behavior of the hydro plants using integer variables, in order to avoid water discharges at forbidden areas Thus, an enhanced STHS is provided due to the more realistic modeling presented in this paper Our approach has been applied successfully to solve a test case based on one of the Portuguese cascaded hydro systems with a negligible computational time requirement.

Keywords

Short-term hydro scheduling (STHS) Mixed-integer nonlinear programming (MINLP) Cascaded reservoirs Variable head

URI

http://hdl.handle.net/10400.21/705

Citation

Catalão J P S, Pousinho H M I, Mendes V M F. Mixed-integer nonlinear approach for the optimal scheduling of a head-dependent hydro chain. Electric Power Systems Research. 2010; 80 (8): 935-942.