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Optimization of Reservoir Releases to Control River Sedimentation Using Differential Dynamic Programming

by Carlos C. Carriaga, Arizona State Univ, Tempe, AZ, USA,
Larry W. Mays, (M.ASCE), Arizona State Univ, Tempe, AZ, USA,



Document Type: Proceeding Paper

Part of: Water Policy and Management: Solving the Problems

Abstract:

A new methodology is developed to address sedimentation control in alluvial rivers downstream of reservoirs. An optimization model is posed as a discrete-time optimal control problem to determine optimal reservoir releases to minimize downstream aggradation and degradation. The model interfaces the HEC-6 code which solves the hydraulic and sedimentation processes in the river into a differential dynamic programming (DDP) procedure which optimizes the control policy. Two case study scenarios for the New Waddell Dam and the Agua Fria River in Arizona were used as application examples for the optimal control model.

Subject Headings: Optimization models | Rivers and streams | Sediment | Reservoirs | Hydraulic models | Control systems | Computer programming | Arizona | United States

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