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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.


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