Optimization of Two-Stage Closure Law of Turbine Wicket Gates and its Application

Abstract:

Optimization of closure law is the priority selection in solving the guaranteed regulation calculation problems due to its simplicity and economy. This present study deals with the optimization of two-stage closure law of wicket gates, which has more advantages in control pressure and speed rise. The mathematical model of transient process is established by introducing the method of characteristic, whose correctness is validated by the field test. Then the model is applied to a specific hydropower station that only can employ closure law optimization to coordinate the contradiction between pressure and speed rise, for two-stage closure optimization. The achievements of the study can serve as a reference for similar projects.

• Periodical: Applied Mechanics and Materials (Volumes 249-250)
• Pages: 636-641
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.249-250.636
• Online since: December 2012
• Authors: Sheng Chen, Jian Zhang, Xiao Dong Yu
• Keywords: Field Test, Numerical Simulation, Optimization, Transient Process, Two-Stage Closure Law

References

[1] Zhang Jian, Hu Jianyong, Hu Ming, Fang Jie, Chen Ning, Study on the reversible pump-turbine closure law and field test [J], Proceedings FEDSM2006, 2 (2006) 931-936.

DOI: 10.1115/fedsm2006-98155

[2] Zhao Weiguo, Wang Liying, Zhai Ziyong, Wang Zijun, Application of multi-objective oprimized methods in the closing law of guide vanes [J], Control and Decision Conference, (2010) 3552-3556.

DOI: 10.1109/ccdc.2010.5498553

[3] Wylie E B, Streetr V L, Suo Lisheng, Fluid Transient in Systems[M], Englewood Cliffs：Prentice Hall, (1993).

[4] Electric Industrial Ministry of People Republic of China, DL/T5058—1996, Design Specification for Surge Chamber of Hydropower Stations, Beijing: China Electric Power Press, (1997).