Joint Operation of the Multi-Reservoir System of the Three Gorges and the Qingjiang Cascade Reservoirs

Energies

Shenglian Guo¹  Jionghong Chen²  Yu Li²  Pan Liu² 

[1] State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China;

关键词: cascade reservoirs;    multi-reservoir system;    joint operation;    hydropower generation;    progressive optimality algorithm;   

DOI  :  10.3390/en4071036

来源: mdpi

【 摘 要 】

Optimal utilization of available water resources has become more urgent due to the rapid growth of the economy and population. The joint operation of the Three Gorges cascade and Qingjiang cascade reservoirs in China was studied in this paper. Choosing maximization of hydropower generation and hydropower revenue as objective functions respectively, optimal models were established for individual and joint operation of the cascade reservoirs. The models were solved by the progressive optimality algorithm. The storage and electric compensation benefits among cascade reservoirs were analyzed. The daily inflow data of consecutive hydrological years of 1982–1987 were selected for a case study. Compared with the design operation rule, the joint operation of the multi-reservoir system can generate 5.992 billion kWh of extra power or an increase of 5.70% by the objective function of maximum hydropower generation. Through reservoir storage compensation, the spilled water of the Three Gorges and Qingjiang cascade reservoirs was decreased by 78.741 and 5.384 billion m³, respectively.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.