Results 51 to 60 of about 166,217 (209)
Frontiers in Energy Research, 2022 To meet the demand of the power grid for flexible regulation, pump turbines have to frequently and fleetly stop, start, and transition between different modes, causing many instability problems.
Dongliang Hu +5 more
doaj +1 more source
Variable speed pumped storage hydropower for integration of wind energy in isolated grids : case description and control strategies [PDF]
, 2008 This paper presents the use of variable speed pumped storage hydropower plants for balancing power fluctuations from wind power in an isolated grid.
Suul, Jon Are +2 more
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Efficiency of photodesorption of Rb atoms collected on polymer organic film in vapor-cell
, 2011 The efficiency of photodesorption of Rb atoms previously collected on polymer organic film has been studied in detail. This study was carried out in a Pyrex glass cell of which the inner surface was covered with (poly)dimethylsiloxane (PDMS) film and ...
Atutov, Sergey N. +3 more
core +1 more source
MaimAir: A flexible and modular energy storage system for tomorrow energy banks [PDF]
, 2016 We considered a novel energy storage system based on the compression of air through pumped water. Differently from CAES on trial, the proposed indirect compression leaves the opportunity to choose the kind of compression from adiabatic to isothermal. The
Fargion, Daniele, Habib, Emanuele
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Frontiers in Energy ResearchThe vibration issue of pumped storage power station unit will directly affect the safe and stable operation of the unit, and the pressure pulsation in the vaneless region is an important index to evaluate the stability of the unit.
Chuanbao Yi +9 more
doaj +1 more source
, 2017 The energy transition is well underway in most European countries. It has a growing impact on electric power systems as it dramatically modifies the way electricity is produced.
Jacquod, Philippe, Pagnier, Laurent
core +1 more source
IET Electric Power ApplicationsRelative to the traditional pumped storage machines, the variable speed pumped storage machine (VSPSM) has strong frequency and voltage regulation capabilities by the AC excitation.
Weifu Lu +5 more
doaj +1 more source
Results in EngineeringStator asymmetric-paths winding of variable speed pump storage (VSPS) generator-motor can solve the problem of mismatch of unit speed, capacity and outlet voltage.
Weifu Lu +3 more
doaj +1 more source
Development of a renewable hybrid power plant with extended utilization of pumped storage unit equipment [PDF]
, 2019 The scheme of a renewable hybrid power plant with the extended use of the installed equipment of the pumped storage unit for the conversion of the photovoltaic and wind generators direct current to the alternating one is proposed.
Chervonenko, I. +2 more
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Research on anti-seepage grouting in completely weathered granite based on superfine materials
地质科技通报Objective To solve the problems of "draught without slurry", poor groutability and slurry stability in the grouting process of completely weathered granite, a new composite grouting material is proposed in this paper to improve the anti-seepage and ...
Yongfeng LI +5 more
doaj +1 more source