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- Title
双尾水调压室抽水蓄能电站过渡过程研究.
- Authors
葛佩明; 张 健; 陈 胜
- Abstract
In order to study the characteristics of I lie tail-water system in the transition process, this paper made a theoretical analysis on the influence of one-dimensional transient flow theory to the minimum pressure of the tailpipe, combined with the actual tail water layout of this type pumped storage power station, established the transition process computing model and simulated a variety of transition process conditions. The multiple turbines were divided into two groups to arrange lailrace surge tank and connected after the tanks. Results indicate that the double-lailrace surge tank layout can better control the surge of surge tank to reduce the actual amount of work required. In reducing load conditions, the discharge flow rale of the double-tailrace surge tank layout is greater than that of single-tailrace surge tank layout, so the minimum pressure of the tail pipe can he greatly improved when the flow rale of the turbine is consistent. The protection effect of different load reduction schemes is different between the two lailrace surge tanks. When multiple load reduction turbines are regulated by different lailrace surge tanks, two surge tanks can achieve tlie larger flow rale of flow rale for protection. When multiple load reduction turbines are regulated by one lailrace surge tank, only the direct regulating surge tank can he protective. The double-tailrace surge tank layout is arranged to provide a more flexible load reduction turbine selection scheme for a multi-machine pumped storage power station and it has reference value for the design of tail-water system and the practical operation of station.
- Publication
Yellow River, 2018, Vol 40, Issue 10, p104
- ISSN
1000-1379
- Publication type
Article
- DOI
10.3969/j.issn.1000-1379.2018.10.023