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Calculation of Ultra-short-term Water Balance for Channel Reservoir of Shaping Secondary Hydropower Station
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Guang-ming WANG1, Xiang GAO2, Xiao-qun WANG3, 4, Yu-bin ZHANG3, 4, Yan LONG3, 4, Chao WANG5, Tao HE1, Hong-yu GAO3, 4
Water Resources and Power | 2023, 41(9) : 23 - 27
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Water Resources and Power | 2023, 41(9): 23-27
• HYDROLOGY, WATER RESOURCES AND ENVIRONMENT •
Calculation of Ultra-short-term Water Balance for Channel Reservoir of Shaping Secondary Hydropower Station
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Guang-ming WANG1, Xiang GAO2, Xiao-qun WANG3, 4, Yu-bin ZHANG3, 4, Yan LONG3, 4, Chao WANG5, Tao HE1, Hong-yu GAO3, 4
Affiliations
  • 1.CHN ENERGY Dadu River Shaping Power Generation Co., Ltd., Leshan 614300, China
  • 2.Guangzhou Zhukeyuan Engineering Survey and Design Co., Ltd., Chuangzhou 510610, China
  • 3.School of Water Conservancy and Hydroelectric Power, Hebei University of Engineering, Handan 056038, China
  • 4.Key Laboratory of Intelligent Water Resources of Hebei Province, Handan 056038, China
  • 5.State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
Published: 2023-09-25 doi: 10.20040/j.cnki.1000-7709.2023.20222168
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The ultra-short-term reservoir water balance simulation of channel-type reservoirs is the key to the operation of the reservoir, but the results easily appear sawtooth oscillation. The calculation error is due to the fluctuation of the water level in front of the dam by extending the simulation time scale. Among the factors that cause the fluctuation of the water level in front of the dam, taking the load change as an example, the calculation error of water balance caused by the load change was corrected. An ultra-short-term water balance method for channel-type reservoirs was put forward based on one-dimensional hydrodynamics. The method established a one-dimensional hydrodynamic model of the river-reservoir area, and procured the accurate storage capacity by calculating the average water level instead of the water level in front of the dam, thereby eliminating the jagged error. The calculation results show that the simulation accuracy can be effectively improved after eliminating the influence of load changes. The ultra-short-term water balance method for channel-type reservoirs based on one-dimensional hydrodynamics can eliminate the sawtooth error and achieve high simulation accuracy.

ultra-short-term water balance  /  Shaping II Hydropower Station  /  load change  /  one-dimensional hydrodynamics
Guang-ming WANG, Xiang GAO, Xiao-qun WANG, Yu-bin ZHANG, Yan LONG, Chao WANG, Tao HE, Hong-yu GAO. Calculation of Ultra-short-term Water Balance for Channel Reservoir of Shaping Secondary Hydropower Station[J]. Water Resources and Power, 2023 , 41 (9) : 23 -27 . DOI: 10.20040/j.cnki.1000-7709.2023.20222168
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Year 2023 volume 41 Issue 9
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20222168
  • Receive Date：2022-10-17
  • Online Date：2026-01-28
  • Published：2023-09-25
Article Data
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History
  • Received：2022-10-17
  • Revised：2022-11-18
Funding
Affiliations
    1.CHN ENERGY Dadu River Shaping Power Generation Co., Ltd., Leshan 614300, China
    2.Guangzhou Zhukeyuan Engineering Survey and Design Co., Ltd., Chuangzhou 510610, China
    3.School of Water Conservancy and Hydroelectric Power, Hebei University of Engineering, Handan 056038, China
    4.Key Laboratory of Intelligent Water Resources of Hebei Province, Handan 056038, China
    5.State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
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https://castjournals.cast.org.cn/joweb/sdnykx/EN/10.20040/j.cnki.1000-7709.2023.20222168
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