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Turbine governing and surge-tank stability
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Hydraulic Engineering. (Vattenbyggnadshydraulik)
1992 (English)In: Journal of Hydraulic Research, ISSN 0022-1686, E-ISSN 1814-2079, Vol. 30, no 1Article in journal (Refereed) Published
Abstract [en]

The stability of water-surface oscillations is investigated for the case of a tailrace surge chamber shared by two or more generating units in a hydroelectric power plant. Two kinds of turbine governing are applied for the condition of small-amplitude surge perturbations. Critical stability conditions for the surge chamber are derived by linearizing the ordinary differential equations describing the lumped system. As compared with the result achieved by previous researchers, the common surge chamber requires smaller horizontal crosssection for surge stability. A combination of the proposed manners of governing can be utilized in certain power plants in order to achieve an economical design of the surge chambers.

Place, publisher, year, edition, pages
1992. Vol. 30, no 1
Keyword [en]
surge tank, stability, turbine governing, small oscillations, lumped system
National Category
Civil Engineering
URN: urn:nbn:se:kth:diva-179781OAI: diva2:889446

QC 20160104

Available from: 2015-12-25 Created: 2015-12-25 Last updated: 2016-01-04Bibliographically approved

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