A simultaneous dynamic opimization approach to address restoration policies in reservoirs.

ESTRADA, V.; PARODI, E. R; DÍAZ, M. S.

MECANICA COMPUTACIONAL

AMCA

Lugar: San Luis; Año: 2008 vol. 27 p. 301 - 308

In this work, we develop a dynamic optimization model for a Paso de las Piedras reservoir that supplies drinking water for more than 400,000 inhabitants and for industrial purposes to determine restoration policies for algal growth control. A biogeochemical model has been formulated within a simultaneous dynamic optmization framework to solve the optimal control problem whose solution provides limiting nutrient inflow profiles to the lake and in-lake biomanipulation profile. The water quality model comprises a set of partial differential algebraic equations in time and space. Spatial discretization has been performed in two layers. The simultaneous approach proceeds by discretizing control and state variables by collocation over finite elements and solving the large scale nonlinear program with a successive quadratic programming algorithm.