Long-term Optimal Scheduling of Cascade Hydropower Stations Using Fuzzy Multi-objective Dynamic Programming Approach

A multi-objective fuzzy dynamic programming model for Three Gorges cascaded hydropower is presented in this paper. Three Gorges cascaded hydropower is a multifunctional reservoir, and it plays a great role in power generation, shipping, ecology, etc. Many methods have being developed to solve the conflict among them. In this paper, we develop a single-objective fuzzy dynamic programming model firstly, then we extent the model to multi-objective fuzzy dynamic programming model. Considering the actual conditions of Three Gorges cascaded hydropower, we take maximization of Three Gorges reservoir's power generation and minimization of Gezhouba reservoir's surplus water as the two objectives, and the optimal problem is solved satisfactorily.