人民长江
人民長江
인민장강
YANGTZE RIVER
2015年
16期
75-79
,共5页
过渡过程%吸出高度%转轮模型特性%转动惯量%导叶关闭规律%抽水蓄能电站
過渡過程%吸齣高度%轉輪模型特性%轉動慣量%導葉關閉規律%抽水蓄能電站
과도과정%흡출고도%전륜모형특성%전동관량%도협관폐규률%추수축능전참
transient process%draft head%runner model characteristics%moment of inertia%closure law of guide vanes%pumped storage power station
过渡过程计算是调节保证设计的一种计算手段,也是调节保证设计的基础。以国内某抽水蓄能电站可行性研究阶段的过渡过程计算过程为例,通过利用Hysim软件,计算分析了电站吸出高度、转轮模型特性、尾水洞洞径的大小、机组转动惯量以及导叶关闭规律等因素对过渡过程计算结果的影响。分析结果表明,电站吸出高度和转轮模型特性对过渡过程计算结果影响更为显著;由于电站的吸出高度和枢纽布置方案在可研阶段基本上已经确定,而不同厂家研发的机组所具有的特性又各不相同,因此,在实施机组招标时,应重视机组特性对过渡过程计算的影响,以满足调节保证设计的要求。
過渡過程計算是調節保證設計的一種計算手段,也是調節保證設計的基礎。以國內某抽水蓄能電站可行性研究階段的過渡過程計算過程為例,通過利用Hysim軟件,計算分析瞭電站吸齣高度、轉輪模型特性、尾水洞洞徑的大小、機組轉動慣量以及導葉關閉規律等因素對過渡過程計算結果的影響。分析結果錶明,電站吸齣高度和轉輪模型特性對過渡過程計算結果影響更為顯著;由于電站的吸齣高度和樞紐佈置方案在可研階段基本上已經確定,而不同廠傢研髮的機組所具有的特性又各不相同,因此,在實施機組招標時,應重視機組特性對過渡過程計算的影響,以滿足調節保證設計的要求。
과도과정계산시조절보증설계적일충계산수단,야시조절보증설계적기출。이국내모추수축능전참가행성연구계단적과도과정계산과정위례,통과이용Hysim연건,계산분석료전참흡출고도、전륜모형특성、미수동동경적대소、궤조전동관량이급도협관폐규률등인소대과도과정계산결과적영향。분석결과표명,전참흡출고도화전륜모형특성대과도과정계산결과영향경위현저;유우전참적흡출고도화추뉴포치방안재가연계단기본상이경학정,이불동엄가연발적궤조소구유적특성우각불상동,인차,재실시궤조초표시,응중시궤조특성대과도과정계산적영향,이만족조절보증설계적요구。
Transient process calculation is the basis of regulation guarantee design. Taking the transient process calculation in feasibility study of a domestic pumped storage power station as an example, the effects on the transient process calculation results exerted by the following factors are calculated and analyzed through Hysim:draft head, runner model characteristics, diameter of tailrace tunnel, generator-unit's moment of inertia and closure law of guide vanes. It is founded that the draft head and runner model characteristics have more significant impact on the transient process calculation results. As the draft head and the station layout can be basically determined in feasibility study while the characteristics of the generator-unit developed by different man-ufacturers are variable, so concern should be attached to the characteristics of the generator-unit in its bid invitation so as to meet the demand of regulation guarantee design.