dp: Dynamic Programming (Deprecated function; use 'dp_supply'...

In reservoir: Tools for Analysis, Design, and Operation of Water Supply Storages

Description

Determines the optimal sequence of releases from the reservoir to minimise a penalty cost function based on water supply defict.

Usage

dp(Q, capacity, target, S_disc = 1000, R_disc = 10, loss_exp = 2,
  S_initial = 1, plot = TRUE, rep_rrv = FALSE)

Arguments

Q	vector or time series object. Net inflows to the reservoir.
capacity	numerical. The reservoir storage capacity (must be the same volumetric unit as Q and the target release).
target	numerical. The target release constant.
S_disc	integer. Storage discretization–the number of equally-sized storage states. Default = 1000.
R_disc	integer. Release discretization. Default = 10 divisions.
loss_exp	numeric. The exponent of the penalty cost function–i.e., Cost[t] <- ((target - release[t]) / target) ^ **loss_exp**). Default value is 2.
S_initial	numeric. The initial storage as a ratio of capacity (0 <= S_initial <= 1). The default value is 1.
plot	logical. If TRUE (the default) the storage behavior diagram and release time series are plotted.
rep_rrv	logical. If TRUE then reliability, resilience and vulnerability metrics are computed and returned.

Value

Returns the time series of optimal releases and, if requested, the reliability, resilience and vulnerability of the system.

References

Loucks, D.P., van Beek, E., Stedinger, J.R., Dijkman, J.P.M. and Villars, M.T. (2005) Water resources systems planning and management: An introduction to methods, models and applications. Unesco publishing, Paris, France.

See Also

sdp for Stochastic Dynamic Programming

reservoir documentation built on May 2, 2019, 5:52 a.m.