Multi-Reservoir Operation Planning Using Hybrid Genetic Algorithm and Linear Programming (GA-LP): An Alternative Stochastic Approach |
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Authors: | Email author" target="_blank">L?F?R?ReisEmail author G?A?Walters D?Savic F?H?Chaudhry |
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Affiliation: | 1.S?o Carlos School of Engineering,University of S?o Paulo,S?o Carlos,Brazil;2.Department of Engineering, School of Engineering and Computer Science,University of Exeter,Exeter,U.K. |
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Abstract: | Many models have been suggested to deal with the multi-reservoir operation planning stochastic optimization problem involving
decisions on water releases from various reservoirs in different time periods of the year. A new approach using genetic algorithm
(GA) and linear programming (LP) is proposed here to determine operational decisions for reservoirs of a hydro system throughout
a planning period, with the possibility of considering a variety of equally likely hydrologic sequences representing inflows.
This approach permits the evaluation of a reduced number of parameters by GA and operational variables by LP. The proposed
algorithm is a stochastic approximation to the hydro system operation problem, with advantages such as simple implementation
and the possibility of extracting useful parameters for future operational decisions. Implementation of the method is demonstrated
through a small hypothetical hydrothermal system used in literature as an example for stochastic dual dynamic programming
(SDDP) method of Pereira and Pinto (Pereira, M. V. F. and Pinto, L. M. V. G.: 1985, Water Res. Res. 21(6), 779–792). The proposed GA-LP approach performed equally well as compared to the SDDP method. |
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Keywords: | genetic algorithm hydrothermal system linear programming multi-reservoir systems optimal operation power generation |
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