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Network Methods for Head-dependent Hydro Power Scheduling

  • S. Feltenmark
  • P. O. Lindberg
Part of the Lecture Notes in Economics and Mathematical Systems book series (LNE, volume 450)

Abstract

We study short-term planning of hydro power with a nonlinear objective function. Given prices on the power one seeks to maximize the value of the production over a time-horizon. By assuming a bilinear dependency on head and discharged water we prove that the objective varies concavely when one sends flow along cycles. It follows that in each set of points of equal value containing a local optimum, there is an extreme point of the feasible set. This suggests computing stationary points by using a modified minimum cost network flow code. The model also allows us to derive explicit convex lower bounding functions of the objective. We present computational results for a real-sized hydro-power system.

Keywords

Local Optimum Extreme Point Network Flow Downstream Station Hydro Power 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • S. Feltenmark
    • 1
  • P. O. Lindberg
    • 2
  1. 1.Optimization and Systems Theory, Department of MathematicsRoyal Institute of TechnologyStockholmSweden
  2. 2.Optimization, Department of MathematicsLinköping UniversityLinköpingSweden

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