期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2012
卷号：15
期号：5
DOI：10.1088/1755-1315/15/5/052008
出版社：IOP Publishing
摘要：On condition that the engineering cost remains the same, optimization of wicket-gate closing law has always been the most economical and efficient way to reduce the incident risk and guarantee the security of hydro-turbine and the whole hydraulic network. In this paper, improved approaches for optimization of wicket-gate closing law are proposed. A new nonlinear evaluating function is developed and a wicket-gate closing law optimization method dealing with different hydro-transient cases (different water levels, operation conditions, combination cases etc) is introduced. Based on these improvements and genetic algorithm, a series of practical engineering scheme studies are preformed and the results are illustrated. The numerical calculation results show that the new non-linear evaluating function is of great advantages compared to traditional evaluating function in distribution of safety margin of each optimization goal. Optimized WG closing law by multi-mode optimum method is proved to be accurate and universal to different hydro-transient cases.
