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Influence of Mixed Arrangement of Variable-constant Speed Reversible Units on Load Rejection Transition Process
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Chao HU1, Sheng CHEN1, Jia-chuan BAI2, Ya-ru GONG1, Jian ZHANG1
Water Resources and Power | 2023, 41(12) : 190 - 194
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Water Resources and Power | 2023, 41(12): 190-194
• ELECTROMECHANICS AND CONTROL ENGINEERING •
Influence of Mixed Arrangement of Variable-constant Speed Reversible Units on Load Rejection Transition Process
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Chao HU1, Sheng CHEN1, Jia-chuan BAI2, Ya-ru GONG1, Jian ZHANG1
Affiliations
  • 1.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
  • 2.Kunshan Water Engineering Quality and Safety Supervision Station, Suzhou 215300, China
Published: 2023-12-25 doi: 10.20040/j.cnki.1000-7709.2023.20230246
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At present, the issue on the influence of mixed arrangement of variable and constant speed units on the load rejection transition process under the complex water delivery system with multi-units sharing multi-tunnels is scarce. Based on the transient flow theory of one-dimensional pipeline, this paper established the mathematic model of hydraulic transition process of variable-constant speed pumped storage units that four units share two tunnels in the diversion system and one tunnel in the tailrace system by using the characteristic method, and discussed the influence of the mixed arrangement of variable and constant speed units on regulation guarantee parameters under the load rejection condition by combining with practical engineering examples. The results show that regulation guarantee parameters during the load rejection transition process under the layout of two variable speed units sharing one diversion hole are safer than those under the layout of variable speed units sharing different diversion holes in the region with higher power generation efficiency.

variable speed pumped-storage unit  /  mixed arrangement  /  load rejection transition process  /  power generation efficiency  /  regulation guarantee parameter
Chao HU, Sheng CHEN, Jia-chuan BAI, Ya-ru GONG, Jian ZHANG. Influence of Mixed Arrangement of Variable-constant Speed Reversible Units on Load Rejection Transition Process[J]. Water Resources and Power, 2023 , 41 (12) : 190 -194 . DOI: 10.20040/j.cnki.1000-7709.2023.20230246
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Year 2023 volume 41 Issue 12
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Article Info
doi: 10.20040/j.cnki.1000-7709.2023.20230246
  • Receive Date：2023-02-23
  • Online Date：2026-01-28
  • Published：2023-12-25
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History
  • Received：2023-02-23
  • Revised：2023-04-04
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Affiliations
    1.College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
    2.Kunshan Water Engineering Quality and Safety Supervision Station, Suzhou 215300, 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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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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