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首页> 外文会议>American Society of Mechanical Engineers(ASME) Joint U.S.-European Fluids Engineering Division Summer Conference 2006(FEDSM2006) vol.2; 20060717-20; Miami,FL(US) >STUDY ON THE REVERSIBLE PUMP-TURBINE CLOSING LAW AND FIELD TEST
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STUDY ON THE REVERSIBLE PUMP-TURBINE CLOSING LAW AND FIELD TEST

机译：可逆式水轮机关闭规律及现场试验研究

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摘要

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.
机译：在抽水蓄能电站的运行中，经常发生大范围负荷的突然变化，可逆式水轮机紧急关闭规律的设计应满足转速上升和压力上升的极限。讨论了抽水蓄能电站常用的可逆式水轮机的折线闭合规律，并根据可逆式水轮机的全液压特性，设计了三段延迟段的折线闭合规律，其优缺点。并对水轮机紧急关闭规律进行了分析。数值计算和现场试验表明，通过上述关闭规律有效地减少了闸门关闭以及转速上升引起的抽水蓄能输水系统中的水锤现象，特别是对于后者，其转折点位置可以随以下变化在不同的操作情况下，克服了不良鲁棒性的检测。提出了可逆式水泵水轮机紧急关闭规律设计的新思路，具有良好的发展前景。

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