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Study on Similarity Runoff Forecasting of Longtan Hydropower Station
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Jin-ji XIE1, Fen-e CHEN1, Shan YANG2, Ling-yan LI1, Cheng ZHONG1, Xin WEN2
Water Resources and Power | 2023, 41(11) : 10 - 13
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Water Resources and Power | 2023, 41(11): 10-13
HYDROLOGY, WATER RESOURCES AND ENVIRONMENT
Study on Similarity Runoff Forecasting of Longtan Hydropower Station
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Jin-ji XIE1, Fen-e CHEN1, Shan YANG2, Ling-yan LI1, Cheng ZHONG1, Xin WEN2
Affiliations
  • 1.Guangxi Guiguan Electric Power Co., Ltd., Nanning 530000, China
  • 2.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
Published: 2023-11-25 doi: 10.20040/j.cnki.1000-7709.2023.20222417
Outline
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In response to the complex mechanism of runoff yield and concentration, insufficient groundwater monitoring data, and low accuracy of runoff prediction in Karst areas, a similarity prediction method that integrates physical mechanisms and data-driven approaches has been proposed. The optimal combination prediction scheme has been established for different flow magnitudes, prediction factors, and preceding affected lag-time, which can achieve adaptive matching and intelligent switching of multiple modes under different water and rain conditions. It can generate interpretable runoff prediction results. This method is applied to the runoff prediction of Longtan Hydropower Station. The results indicate that this method improves the accuracy and effective prediction period of runoff in Karst areas, which has scientific significance and practical value for ensuring the scientific scheduling and safe operation of large power plants.

similarity identification  /  nearest neighbor sampling  /  rolling forecast  /  karst  /  multi-mode switching
Jin-ji XIE, Fen-e CHEN, Shan YANG, Ling-yan LI, Cheng ZHONG, Xin WEN. Study on Similarity Runoff Forecasting of Longtan Hydropower Station[J]. Water Resources and Power, 2023 , 41 (11) : 10 -13 . DOI: 10.20040/j.cnki.1000-7709.2023.20222417
Year 2023 volume 41 Issue 11
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20222417
  • Receive Date:2022-11-16
  • Online Date:2026-01-27
  • Published:2023-11-25
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History
  • Received:2022-11-16
  • Revised:2023-02-21
Affiliations
    1.Guangxi Guiguan Electric Power Co., Ltd., Nanning 530000, China
    2.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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