Local penstock resonance amplified generator power swings

P. Gautam; J.H. Gummer; J. Pott

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Local penstock resonance amplified generator power swings

机译：局部压力共振放大发电机功率摆幅

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摘要

Unacceptably high generator power swings and associated crashes and bangs in the draft tube were found to be caused by local resonance in the penstock branches leading to the two Francis turbines at the Rangipo power station in New Zealand. The resonance was excited by turbine draft tube pressure fluctuations. The authors describe investigations and the solution to the problem.

机译：发现引流管中的发电机功率摆幅高得令人难以接受，并伴有碰撞和撞击，是由于通往新西兰Rangipo电站的两台弗朗西斯涡轮机的压力管道分支中的局部共振引起的。涡轮尾水管压力波动激发了共振。作者描述了调查和问题的解决方案。

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来源
《International Journal on Hydropower & Dams》 |2014年第5期|87-92|共6页
作者
P. Gautam; J.H. Gummer; J. Pott;
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作者单位

Genesis Energy, Level 4, 65, Bryce Stree, Hamiltaon 3204, New Zealand;

Hydro-Consult Pty Ltd, 15 McLeod Street, Rye, Victoria, Australia;

Hydropower Engineering, 90 Nevay Road, Karaka Bays, Wellington 6022, New Zealand;

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Local penstock resonance amplified generator power swings

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