In the operation of pumped storage plant, the sudden change of load in the large range often happen, the design of reversible pump-turbine emergency closing law should satisfy limit of rotation speed-rise and pressure-rise. The broken-line closing law of reversible pump-turbine usually used in pumped storage plants is discussed and based on full hydraulic characteristic of reversible pump-turbine, the broken-line closing law of three stages with delayed segment is designed, virtues and defects of the pump-turbine emergency closing law are also analyzed. Numerical calculation and field test indicate that water hammer in pumped storage plant water conveyance system caused by wicket gate closing together with rotation speed-rise, is effectively reduced by the closing laws presented above, especially to the latter, its turning point position can change following the different operating case, the detection of poor robustness is overcome. A new idea for the design of the reversible pump-turbine emergency closing law is proposed with good prospects.
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ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering
July 17–20, 2006
Miami, Florida, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4751-9
PROCEEDINGS PAPER
Study on the Reversible Pump-Turbine Closing Law and Field Test Available to Purchase
Ning Chen
Ning Chen
Power Generating Company, Ltd., Liyang, China
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Jian Zhang
Hohai University, Nanjing, China
Jianyong Hu
Hohai University, Nanjing, China
Ming Hu
Hohai University, Nanjing, China
Jie Fang
Hohai University, Nanjing, China
Ning Chen
Power Generating Company, Ltd., Liyang, China
Paper No:
FEDSM2006-98155, pp. 931-936; 6 pages
Published Online:
September 5, 2008
Citation
Zhang, J, Hu, J, Hu, M, Fang, J, & Chen, N. "Study on the Reversible Pump-Turbine Closing Law and Field Test." Proceedings of the ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. Volume 2: Fora. Miami, Florida, USA. July 17–20, 2006. pp. 931-936. ASME. https://doi.org/10.1115/FEDSM2006-98155
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