By K. D. W. Nandalal
Dynamic programming is a technique of fixing multi-stage difficulties during which judgements at one level turn into the stipulations governing the succeeding levels. it may be utilized to the administration of water reservoirs, permitting them to be operated extra successfully. this is often one of many few books devoted completely to dynamic programming thoughts utilized in reservoir administration. It offers the applicability of those strategies and their limits at the operational research of reservoir platforms. The dynamic programming types offered during this booklet were utilized to reservoir structures around the world, assisting the reader to understand the applicability and bounds of those versions. The publication additionally incorporates a version for the operation of a reservoir in the course of an emergency scenario. This quantity should be a beneficial connection with researchers in hydrology, water assets and engineering, in addition to pros in reservoir administration.
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Additional info for Dynamic Programming Based Operation of Reservoirs: Applicability and Limits (International Hydrology Series)
Example text
4. 8. Under the Ubol Ratana Project, the Nong Wai irrigation system distributes the water released through the hydropower plant for cultivation on both banks of the Nam Pong River. 7 is of ogee shape. 4 m. 6 m by pumping air into a rubber weir fixed onto the top of the concrete weir. The cultivation area on the left bank is about 19 580 ha while that on the right bank is about 22 000 ha. 5 m high and 240 m long. This spillway is able to release a discharge of 1000 m3/s. The reinforced concrete weir (Nong Wai weir) itself is able to release a maximum of 1500 m3/s.
The release during any month should be within this feasible release range: 0 Rj Rj;max ; (2:4) where Rj ¼ reservoir release during period j (%Qj) (106 m3), and Rj,max ¼ maximum allowable release through turbines in period j (106 m3). 2 Characteristic curves of the Kariba Reservoir STATE TRANSFORMATION EQUATION The state transformation equation based on the principle of continuity is as follows: Sjþ1 ¼ Sj þ Ij À Ej À Rj À Oj ; (2:5) where Ej ¼ evaporation from reservoir during period j (106 m3), Ij ¼ inflow to the reservoir during period j (106 m3), and Oj ¼ spillage water during period j (106 m3).
As apparent from the above results, the convergence behavior of the model to the global optimum can be concluded as satisfactory. The application of the IDP technique to the Mahaweli subsystem shows its suitability to derive optimum operational IDP IN OPTIMAL RESERVOIR OPERATION patterns simultaneously for two reservoirs in a system. It further presents the impact of different corridors as well as their widths on the rate of convergence to the optimum result and the optimum value in the IDP technique.