access icon openaccess Decomposition-combination model with parallel computation and its application for optimal operation of cascade power stations

In order to alleviate the problem of ‘curse of dimensionality’ in traditional dynamic programming algorithm for cascade reservoirs optimal operation, this study conducts parallel analysis on optimal operation model for maximum output of cascade hydropower stations from the perspective of time and space, and proposed the decomposition–combination model and its solution for optimal operation for cascade reservoir with parallel computation. Finally, the optimal operation for a three-reservoir cascade system is taken as the case, and the result shows that, for the same discrete points, the result derived by the model proposed in this study could achieve the same result with traditional dynamic programming algorithm, and presents better performance in terms of increasing the solution speed.

Inspec keywords: hydroelectric power stations; optimisation; dynamic programming; reservoirs

Other keywords: cascade hydropower stations; decomposition-combination model; cascade reservoirs optimal operation; traditional dynamic programming algorithm; three-reservoir cascade system; study conducts parallel analysis; optimal operation model; parallel computation; cascade reservoir; decomposition–combination model; cascade power stations

Subjects: Hydroelectric power stations and plants; Optimisation techniques; Optimisation techniques

References

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      • 5. Wang, L.P., Wang, B.Q., Li, C.G., et al: ‘Optimization operation of cascade reservoirs by uniform self-organizing map-genetic algorithm’, Syst. Eng. Theory Pract., 2016, 36, (1), pp. 110.
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      • 2. Li, W.W., Wu, X.X., Huang, J., et al: ‘Mid-long term optimization of reservoir operation for hybrid pumped storage power station based on stochastic dynamic programming’, Power Syst. Prot. Control, 2013, 41, (9), pp. 8693.
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