Results 11 to 20 of about 550 (166)
Shock and Vibration, 2021 In this paper, the contact characteristics of the carbon brush/slip ring of the hydrogenerator under the eccentric vibration of the rotor are studied.
Xinze Zhao +4 more
doaj +3 more sources
Improved hydrogenerator rotor thermal supervision
, 2023 The ongoing energy transition to cleaner energy involves three main changes: using less energy (energy savings on the demand side), making energy production more efficient, and using renewable and low-carbon sources instead of fossil fuels. However, relying more on intermittent renewable energy sources means we need to balance them with conventional ...
Klasnic, Ilija +4 more
core +5 more sources
Structural component fatigue analysis of a hydrogenerator rotor
Dyna, 2020 This paper presents a fatigue life calculation for the pole, the rotor rim, and the rotor spoke of a 100 MW hydro-generator. Mechanical and electrical parameters during unit start, with the hydro-generator working at several power levels, and during a ...
Gonzalo Fernando Casanova Garcia +2 more
doaj +2 more sources
Implementation of Hydrogenerator Overcurrent Protection with Minimum Voltage Blockage Using Embedded Systems [PDF]
Journal of Electrical and Electronics Engineering, 2015 This paper presents a modern and efficient solution for the implementation of the hydrogenerator overcurrent protection with minimum voltage blockage.
PURCARU Dorina +2 more
doaj +1 more source
Localization of Partial Discharges in Hydrogenerators by Ozone Emission
EnergiesWe suggest a new method of localization of partial discharges in high-power electrical systems. Ozone in a hydrogenerator is produced by chemical reactions induced by partial discharges in the stator region.
Victor Dmitriev +3 more
doaj +2 more sources
Electronics LettersIn this letter, the effects of various material definition approaches for stator and rotor cores on the no‐load electromagnetic field calculations of a 34 MW tubular hydrogenerator are investigated, utilizing the transient motion electromagnetic field ...
Jia‐xin Man +2 more
doaj +2 more sources
IET Electric Power ApplicationsThe selected electromagnetic field model of a hydro generator directly affects the calculation of the no‐load magnetic field, which in turn affects the grid‐connected power quality of the hydrogenerator and the power transmission safety.
Qi‐Rui Yin +4 more
doaj +2 more sources
Праці Інституту електродинаміки Національної академії наук України, 2021 The paper presents results of analysis of the influence of the thickness of the dielectric substrate of a capacitive beating sensor, the electrodes of which are made of foil dielectric type FR4, on the transformation function of the sensor by methods of ...
В.О. Березниченко +1 more
doaj +1 more source
NTU "KhPI" Bulletin: Power and heat engineering processes and equipment, 2023 У статті розглянуті основні причини вібрації у підп’ятнику гідрогінератора-двигуна потужністю 320 МВт. Розглянуті основні типи внутрішніх та поверхневих дефектів, що виникають на робочій поверхні диску підп’ятника у процесі довготривалої експлуатації.
openaire +3 more sources
IET Electric Power Applications, Volume 17, Issue 12, Page 1524-1534, December 2023., 2023 The temperature characteristics of gap‐pickup diagonal‐flow turbo‐generator rotor is obtained, and the suppression law of hydrogen temperature and pressure on rotor temperature is summarised. Abstract In recent years, the extensive participation of turbine generator in deep peak regulation has caused significant damage to the rotor windings, which is ...
Yucai Wu, Yingjie Guo
wiley +1 more source