Short-Term Hydropower Scheduling Model with Two Coupled Temporal Scales
Publication: Journal of Water Resources Planning and Management
Volume 144, Issue 2
Abstract
This paper presents a short-term hydropower scheduling model to determine the number of operating units and the power in each quarter hour and for each hydroplant. A reservoir operation and hydropower unit commitment problem are formulated and solved using linear programming (LP) and dynamic programming (DP), respectively. Two temporal scales are coupled with each other in formulating the reservoir operation problem, with the quarter-hourly and hourly scales used for power and water balances, respectively. The model has its advantages in adapting to preferences of shift engineers by prioritizing the objective and constraints, as well as in taking into account the roles of reservoirs in balancing power demands. The model and procedure are applied to deal with the Yunnan provincial hydropower system that consists of 37 reservoirs, believed to be one of the largest-scale problems ever reported. The experience from this work suggests that the gap between academy and industry is mainly attributable to modeling, not the methods or algorithms used to solve the models.
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Acknowledgments
This paper is supported by the National Key Research and Development Program of China under Grant No. 2016YFC0401910, and the Fundamental Research Funds for the Central Universities under Grant No. 2017KFYXJJ207.
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Published In
Journal of Water Resources Planning and Management
Volume 144 • Issue 2 • February 2018
Copyright
©2017 American Society of Civil Engineers.
History
Received: Jan 14, 2017
Accepted: Aug 11, 2017
Published online: Dec 15, 2017
Published in print: Feb 1, 2018
Discussion open until: May 15, 2018
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