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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.8 No.3
- 발행연도
- 2015.9
- 수록면
- 169 - 182 (14page)
- DOI
- http://dx.doi.org/10.5293/IJFMS.2015.8.3.169
이용수
초록· 키워드
오류제보하기
When simulating the dynamic behaviour of a hydro power plant, it is essential to have a good representation of the turbine behaviour. The pressure transients in the system occurs because the flow changes, which the turbine defines. The flow through the turbine is a function of the pressure, the speed of rotation and the wicket gate opening and is, most often described in a performance diagram or Hill diagram. In the Hill diagram, the efficiency is drawn like contour lines, hence the name. A turbines Hill diagram is obtained by performance tests on scaled model in a laboratory. However, system dynamic simulations have to be performed in the early stage of a project, before the turbine manufacturer has been chosen and the Hill diagram is known. Therefore one have to rely on diagrams for a turbine with similar speed number. The Hill diagram is drawn through measured points, so for using the diagram in a simulation program, one have to iterate in the diagram based on curve fitting of the measured points. This paper describes an alternative method. By means of the Euler turbine equation, it is possible to set up two differential equations which represents the turbine performance with good enough accuracy for the dynamic simulations. The only input is the turbine's main geometry, the runner blade in- and outlet angle and the guide vane angle at best efficiency point of operation (BEP). In the paper, simulated turbine characteristics for a high head Francis turbine, and for a reversible pump turbine are compared with laboratory measured characteristics.
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참고문헌 (9)
참고문헌 신청
[학술대회논문] - Dörfler P. K. / 1998 / Stable operation acvhieved on a single -stage reversible pump-turbine showing instability at no-load / Proceeding of the 19th Symposium on Hydraulic Machinery and Systems
[학술대회논문] - Nielsen T.K. / 2014 / Unstable behaviour of RPT when testing turbine characteristics in the laboratory / 27th IAHR Symposium on Hydraulic Machinery and Systems
[학술대회논문] - Martin, C.S. / 1986 / Stability of pump-turbines during transient operations / 5th International conference on pressure surges
[학술대회논문] - Nielsen T.K / 2010 / Dynamic Behavior of Reversible Pump-Turbines in Turbine Mode of Operation / International Symposium on Transport Phenomena and Dynamics of Rotating Machine
[학술대회논문] - Olimstad G. / 2012 / Geometry Impact on Pump-Turbine Characteristics / 14th International Symposium on Transport Phenomena and Dynamics of Rotating Machine
[학술대회논문] - Nielsen T.K. / 2014 / Unstable behaviour of RPT when testing turbine characteristics in the laboratory / 27th IAHR Symposium on Hydraulic Machinery and Systems
[학술대회논문] - Martin, C.S. / 1986 / Stability of pump-turbines during transient operations / 5th International conference on pressure surges
[학술대회논문] - Nielsen T.K / 2010 / Dynamic Behavior of Reversible Pump-Turbines in Turbine Mode of Operation / International Symposium on Transport Phenomena and Dynamics of Rotating Machine
[학술대회논문] - Olimstad G. / 2012 / Geometry Impact on Pump-Turbine Characteristics / 14th International Symposium on Transport Phenomena and Dynamics of Rotating Machine
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