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Energies 2018, 11(12), 3355;

A New Reservoir Operation Chart Drawing Method Based on Dynamic Programming

School of Hydropower & Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
College of Renewable Energy, North China Electric Power University, Beijing 102206, China
Author to whom correspondence should be addressed.
Received: 9 November 2018 / Revised: 24 November 2018 / Accepted: 29 November 2018 / Published: 30 November 2018
(This article belongs to the Section Sustainable Energy)
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A reservoir operation chart is an important tool in guiding actual reservoir operation at present. There are mainly two kinds of methods in drawing the operation chart, i.e., conventional methods and optimization methods, but each of them has some shortcomings, such as the repeated empirical inspection and correction of conventional methods, and the sensitivity to the initial trajectories of some optimization algorithms. In view of this, based on the principle of dynamic programming (DP), this paper coupled the reservoir operation chart drawing model and the DP model, and proposed a new reservoir operation chart drawing method which has no empirical inspection and correction, no requirement for initial solution, no problem of premature convergence and local convergence. In addition, this method can guarantee the global convergence of the results to a certain extent because of the global convergence of DP. Ya Yangshan reservoir in the Li Xianjiang River of China was selected as the research object to derive the operation chart by the drawing method. The simulation results show that the proposed method in this paper presents better performance compared with the conventional method on power generation, guaranteed output, and assurance rate, especially on the latter, which has a 2.68% increase. In addition, compared with the deterministic optimization results of DP, it is found that the results of the proposed method are very close to that of deterministic DP, the differences are only 1.8 GWh (0.36% decline) and 1.6 GWh (0.32% decline). So, the validity and rationality of the proposed method are further verified by the simulation results. View Full-Text
Keywords: hydropower; reservoir; operation chart; dynamic programming; drawing method hydropower; reservoir; operation chart; dynamic programming; drawing method

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Jiang, Z.; Qiao, Y.; Chen, Y.; Ji, C. A New Reservoir Operation Chart Drawing Method Based on Dynamic Programming. Energies 2018, 11, 3355.

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