Investigation of oscillatory problems of hydraulic generating units equipped with Francis turbines

被引：28

作者：

Konidaris, DN ^{[1
]}

Tegopoulos, JA ^{[1
]}

机构：

[1] NATL TECH UNIV ATHENS,GR-10682 ATHENS,GREECE

来源：

IEEE TRANSACTIONS ON ENERGY CONVERSION | 1997年 / 12卷 / 04期

关键词：

hydraulic units; Francis turbines; draft tube surges; vibrations; diagnosis;

D O I：

10.1109/60.638969

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 [动力工程及工程热物理]; 0820 [石油与天然气工程];

摘要：

In the present paper a method is presented for the study of oscillatory problems of hydraulic generating units equipped with Francis turbines. The accurate equations of the turbine are implemented for the simulation, taking into account water hammer effect. Partial derivatives of turbine flow rate and torque with respect to head and gate opening are deduced from real measurements for the whole loading range. Speed governor dynamics are fully simulated, and the influence of torsional vibrations Is studied. The vibration response of the unit to draft tube surges is investigated and the risk of excessive oscillations is evaluated. The approach was developed for diagnosis of excessive vibrations of Kastraki hydro power station in Greece.

引用

页码：419 / 425

页数：7