Results 21 to 30 of about 1,644 (207)
Using similarity numbers for the diagnostics of aircraft hydrogenerator
Aviation, 2014 In aviation, great emphasis is placed on aircraft safety. The current technical condition of the aircraft and its systems is an important parameter for its airworthiness.
Karol Bencalik, Karel Tretina
doaj +3 more sources
Measuring Transducer for Air Gap Capacitive Sensor in Hydrogenerator
Приборы и методы измерений, 2020 One of the most important parameters of powerful hydro generators (HG) is the air gap between the rotor and the stator, and its deviation from the set norms is a defect that can lead to serious accidents.
A. S. Levytskyi +3 more
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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
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The Methods of Three-Dimensional Modeling of the Hydrogenerator Thrust Bearing
Computation, 2022 In the presented scientific work, the basic design versions of the thrust bearings of Hydrogenerators are considered. The main causes of emergencies in the thrust bearing unit of a high-power Hydrogenerator are considered.
Oleksii Tretiak +4 more
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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
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Tribotechnical Diagnostics of Aircraft Emergency Hydrogenerator NP-27 T
Applied SciencesAircraft emergency hydraulic pumps are safety-critical units whose intermittent operation complicates condition assessment and reduces the diagnostic value of conventional bulk physicochemical oil properties.
Aurel Sloboda +6 more
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Effects of Shifted Magnetic Poles and Skewed Stator Slots on the Synchronous Reactance, Damper Bar Loss, and No‐Load Waveforms of Tubular Hydrogenerators [PDF]
Electronics Letters, Volume 62, Issue 1, January/December 2026.With a large‐scale 34‐MW integer‐slot tubular hydrogenerator as an example, static and transient field models are established and solved in this paper to reveal the influence laws of two key geometric structures, skewed stator slots and shifted poles, on synchronous reactance, damper bar losses, and no‐load voltage waveforms.
Wen‐Han Li +4 more
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Research on the Noise Reduction Method of the Vibration Signal of the Hydrogenerator Unit Based on ITD-PE-SVD [PDF]
Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021 Aiming at the problem that the vibration signals of the hydrogenerator unit are nonlinear and nonstationary and it is difficult to extract the signal features due to strong background noise and complex electromagnetic interference, this paper proposes a dual noise reduction method based on intrinsic time‐scale decomposition (ITD) and permutation ...
Yan Ren +5 more
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Омский научный вестник, 2023 This article presents a comparative analysis of the technical and economic efficiency of a derivation-type inverter micro hydro power plant with an energy storage system and an auto-ballasted micro hydro power plant.
B. V. Lukutin, M. M. Popov
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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