Deep Convolutional Variational Autoencoder as a 2D-Visualization Tool for Partial Discharge Source Classification in Hydrogenerators [PDF]
IEEE Access, 2020 Hydrogenerators are strategic assets for power utilities. Their reliability and availability can lead to significant benefits. For decades, monitoring and diagnosis of hydrogenerators have been at the core of maintenance strategies. A significant part of
Ryad Zemouri +5 more
doaj +5 more sources
Forecast Model Update Based on a Real-Time Data Processing Lambda Architecture for Estimating Partial Discharges in Hydrogenerator. [PDF]
Sensors (Basel), 2020 The prediction of partial discharges in hydrogenerators depends on data collected by sensors and prediction models based on artificial intelligence. However, forecasting models are trained with a set of historical data that is not automatically updated ...
Pereira FH +7 more
europepmc +2 more sources
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.
I. Kobzar
semanticscholar +4 more sources
The Choice of a Rational Technology for Manufacturing the Hydrogenerators-Motors Rotor Rim
Journal of Mechanical Engineering, 2023 The object of research in the paper is the technology of manufacturing segments of the rotor rim of large hydrogenerators-motors. The subject of study is the design and geometrical state of the rotor rim during the operation of hydraulic units.
Pavlo M. Makarov
doaj +2 more sources
Practical Modal Analysis of a Prototyped Hydrogenerator [PDF]
Vibration, 2021 The vibration on the stator core of hydrogenerators caused by electromagnetic forces is an important factor affecting the reliability and long-lasting operation of a machine.
Allan de Barros +3 more
doaj +2 more sources
Assessing the Impacts of Flexible Operation Strategies on Classical Hydropower Generators for Advancing the Energy Transition [PDF]
IEEE transactions on energy conversion, 2022 The worldwide energy transition from fossil fuel to renewable energy has disrupted the power and energy sectors, which results in new challenges and opportunities.
Karekezi, Yannick Cyiza
core +5 more sources
Efficiency Mapping and Weighted Average Efficiency for Large Hydrogenerators
IEEE Open Journal of Industry Applications, 2021 This paper presents the concept of efficiency mapping for large synchronous hydrogenerators, which are useful for evaluating hydropower generation performance vis-à-vis interconnected intermittent generation to machine efficiency-oriented design ...
Edson da Costa Bortoni +4 more
doaj +2 more sources
Advances in Modelling and Control of Wind and Hydrogenerators [PDF]
, 2021 Rapid deployment of wind and solar energy generation is going to result in a series of new problems with regards to the reliability of our electrical grid in terms of outages, cost, and life-time, forcing us to promptly deal with the challenging ...
A. Ebrahimi
core +8 more sources
Using Simplified Models to Assist Fault Detection and Diagnosis in Large Hydrogenerators [PDF]
International Journal of Rotating Machinery, 2017 Based on experimental evidence collected in a set of twenty 700 MW hydrogenerators, this article shows that the operating conditions of large hydrogenerators journal bearings may have unpredictable and significant changes, without apparent reasons. These
Geraldo Carvalho Brito Junior +2 more
doaj +3 more sources
AIR GAP CONTROL SYSTEM FOR HYDROGENERATORS
Приборы и методы измерений, 2017 In this paper, we report of the solving the actual problem of control the air gap in the hydrogenerators. The aim of the study was development of a computerized information-measuring system for measuring the air gap in the hydrogenator, which used two ...
I. O. Zaitsev +2 more
doaj +3 more sources