Application of simulation and optimization methods in integrated water management.

Elahe Fallah Mehdipour, Omid Bozorg Haddad

Tuesday 30 june 2015

17:51 - 17:54h at Europe 1 & 2 (level 0)

Themes: (T) Water engineering, (ST) Computational methods, Poster pitches

Parallel session: Poster pitches: 7E. Engineering - Computional

Selection of suitable policy, based on simulation or optimization models, needs achieving the best value for the objectives. Rule curves are a sample of policies in which the release from reservoir is a function of inflow and volume storage of reservoir. Two kind of management can be used in multi-reservoir systems. In the first type, each reservoir is operated neglecting the effects of other reservoirs. In fact, there is a micro management in the system. In the second type, there is a macro management in the system in which the effects of optimal upstream flow have been considered in operation of downstream reservoir. Thus, the integrated water management is preferred to be used in the multi-reservoir system. In this research, some of the long-term operation methods such as: NLP, DP, GA and PSO have been compared and ranked based on reservoir performance criteria such as, objective function value and the executing elapsed time. Optimal operation of single-reservoir system, Karoon IV, with goal of supplying consumption demands has been initially considered. In which, NLP has been had more preference to extract rule curves. Then, the real-time operation methods such as: SOP; SDP and proposed rule curves with third order of inflow and reservoir storage, have been compared and ranked based on performance criteria and objective function value in which the rule curves succeed to find superior rank. The nominated rule has been applied in a three-reservoir system in series and parallel (Karoon V- Bazoft- Karoon IV) with three different objectives, including supplying consumption demand (drinking, industry, and agriculture), hydropower generation, and flood control and recreation. According to these comparisons, the value of objective functions of the three-reservoir system with the goal of supplying demands and hydropower generation have been respectively improved (decreased) 5.10 and 5.37 percent with the corresponding the single-reservoir system. The two-reservoir system, Karoon V- Karoon IV with objective of supplying downstream demand, hydropower generation, and flood control and recreation has returned 9.72, 8.21, and 6.13 percent improvement compared to those of single-reservoir system, respectively.