Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Experience with the operation of hydraulic structures and hydropower-station plants starting hydropower units in the pumping mode
Conclusions 1. The proposed generalized functions for determining the duration of the starting operation of hydraulic turbogenerator unit in the pumping mode, enable computations to be made with a sufficient degree of accuracy, taking into account features of the characteristic graphs of the electric motor, the hydraulic machine, and the conduit system, for cases frequently encountered in practice. A fully or partially closed gate on the upstream conduit, a partially submerged check valve on the upstream side, with Tm/Tw⩾6–7, and also a dry conduit, if the value of the moment of resistance Mo for the hyposynchronous rotational frequency is known. 2. In the cases of starting hydropower units in the pumping mode of operation, when the check valve is not partially submerged on the downsteam side, or is partially submerged but with Tm/Tw<6–7, also for starting with an empty conduit, special investigations should be carried out.
Experience with the operation of hydraulic structures and hydropower-station plants starting hydropower units in the pumping mode
Conclusions 1. The proposed generalized functions for determining the duration of the starting operation of hydraulic turbogenerator unit in the pumping mode, enable computations to be made with a sufficient degree of accuracy, taking into account features of the characteristic graphs of the electric motor, the hydraulic machine, and the conduit system, for cases frequently encountered in practice. A fully or partially closed gate on the upstream conduit, a partially submerged check valve on the upstream side, with Tm/Tw⩾6–7, and also a dry conduit, if the value of the moment of resistance Mo for the hyposynchronous rotational frequency is known. 2. In the cases of starting hydropower units in the pumping mode of operation, when the check valve is not partially submerged on the downsteam side, or is partially submerged but with Tm/Tw<6–7, also for starting with an empty conduit, special investigations should be carried out.
Experience with the operation of hydraulic structures and hydropower-station plants starting hydropower units in the pumping mode
Arshenevskii, N. N. (Autor:in) / Pospelov, B. B. (Autor:in)
Hydrotechnical Construction ; 13 ; 166-172
01.02.1979
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Applied hydraulic transients for hydropower plants and pumping stations
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