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Study on Rate Determination of Comprehensive Output Coefficient of Hongjiadu Hydropower Station
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Wei XU1, Yong GE1, Wei ZHONG2, Xin WEN2
Water Resources and Power | 2023, 41(6) : 192 - 196
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Water Resources and Power | 2023, 41(6): 192-196
• ELECTROMECHANICS AND CONTROL ENGINEERING •
Study on Rate Determination of Comprehensive Output Coefficient of Hongjiadu Hydropower Station
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Wei XU1, Yong GE1, Wei ZHONG2, Xin WEN2
Affiliations
  • 1.Hydropower Station Remote Centralized Control Center of Guizhou Wujiang Hydropower Development, Guiyang 550002, China
  • 2.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
Published: 2023-06-25 doi: 10.20040/j.cnki.1000-7709.2023.20221614
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In view of the problem that the comprehensive output coefficient of power station deviates from the actual situation in varying degrees with the accumulation of operation time, the change of operating conditions, unit wear, the comprehensive output coefficient was calibrated according to the average comprehensive output coefficient and the piecewise fitting coefficient. The piecewise fitting method was further divided into piecewise fitting according to the water head and piecewise fitting considering the water head and power generation flow in terms of the dispatching characteristics. The results were verified by precision evaluation. Combined with the historical operation process of Hongjiadu Hydropower Station, a case study was carried out. The results show that compared with the actual results, the relative error of the average coefficient method is 2.64%, that of the piecewise fitting method according to the head is 2.52%, and that of the piecewise fitting method considering the head and flow is 0.59%. The piecewise fitting method is closer to the actual production process than the average comprehensive output coefficient method, and the piecewise fitting method considering the head and power flow is the most accurate.

comprehensive output coefficient  /  average comprehensive output coefficient method  /  piecewise fitting method  /  head  /  flow
Wei XU, Yong GE, Wei ZHONG, Xin WEN. Study on Rate Determination of Comprehensive Output Coefficient of Hongjiadu Hydropower Station[J]. Water Resources and Power, 2023 , 41 (6) : 192 -196 . DOI: 10.20040/j.cnki.1000-7709.2023.20221614
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Year 2023 volume 41 Issue 6
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20221614
  • Receive Date：2022-08-05
  • Online Date：2026-01-28
  • Published：2023-06-25
Article Data
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History
  • Received：2022-08-05
  • Revised：2022-09-07
Affiliations
    1.Hydropower Station Remote Centralized Control Center of Guizhou Wujiang Hydropower Development, Guiyang 550002, 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
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Number of
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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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