Introduction
The problem of planning
and managing multipurpose reservoir systems, most often stated as an optimal
control problem, has been and continues to be the subject of extensive
research work. This attention is due
to the essential benefits arising from reservoir system operation (e.g.,
water supply, hydropower) in combination with the reduction of natural
risks (e.g., flood control). However,
the large number
of variables involved, the stochastic nature of future inflows, the nonlinearity
of dynamics and other uncertainties of water resources systems render
their management a very difficult task.
Although several methodological
approaches exist, offering a wide range of choises and solutions, Hydronomeas
implements a totally original methodology. Its concept is based on
a previous
work of Nalbantis and Koutsoyiannis
(1997). Here, simulation and optimization techniques are combined
in a effective scheme, enabling a dramatic reduction of system's control
variables.
The above methodology
was extended (Koutsoyiannis et al.,
2001; Karavokiros et al., 2001)
in order to cope with very complex hydrosystems, such as the Water
Resourses System of Athens. This system has a very complicated topology
and its objectives are contradictory. The main concepts of this new methodology
are explained herein.
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