Feedback Method of Control for Estuary Management
暂无分享,去创建一个
A feedback method of control has been used to develop a model for optimal determination of freshwater inflow to bays and estuaries. A modification of the feedback method of control was implemented which makes the technique applicable to certain constrained optimal control problems. The modified feedback model for estuary management consists of a hydrodynamic-transport salinity model, HYD-SAL, coupled to a dynamic programming optimization model. The constraints of the model are the monthly freshwater inflows and the salinities. A quadratic criterion representing a weighted sum of squared deviations from target salinity and freshwater level is chosen as the objective function. The constrained optimal control algorithm employs a penalty function that uses a similar quadratic criterion as the objective function. This algorithm has performed efficiently for computing the optimal freshwater inflows into the Lavaca-Tres Palacios Estuary in Texas while satisfying the freshwater requirements for other components in the system.
[1] L. Mays,et al. Successive Approximation Linear Quadratic Regulator for Estuarine Management Problem , 2000 .
[2] Q. Martin. Estimating freshwater inflow needs for Texas estuaries by mathematical programming , 1987 .
[3] G. Chow,et al. Econometric analysis by control methods , 1983 .
[4] Larry W. Mays,et al. Goal Programming Models for Determining Freshwater Inflows to Estuaries , 1994 .