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Electronics Letters, Volume 62, Issue 1, January/December 2026.Taking a large‐scale 34‐MW integer‐slot tubular hydrogenerator as a case study, this paper establishes and solves static and transient field models to investigate the effects of two key geometric features – skewed stator slots and shifted magnetic ...
Wenhao Li +4 more
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Polarization and Depolarization Current Analysis on Hydrogenerators
2025 IEEE Electrical Insulation Conference (EIC)Polarization and Depolarization Current measurements (PDC) are well-known in the industry. HydroQuébec has been using PDC measurements as a diagnostic tool for more than 25 years. Since 2012, systematic PDC measurements are conducted every 6 years on the
Simon Bernier +4 more
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Ensemble Deep-Learning Model for Phase-Resolved Partial Discharge Diagnosis in Hydrogenerators
IEEE transactions on dielectrics and electrical insulation, 2023Condition monitoring of hydrogenerators is extremely essential for the optimization of the power supply system’s maintenance, especially in a context where energy consumption will increase more and more.
R. Zemouri, M. Lévesque
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2023 IEEE 5th International Conference on Modern Electrical and Energy System (MEES), 2023
In this paper proposed and investigated a capacitive sensor with parallel coplanar electrodes systems for measuring the air gap between the stator core bore and the rotor poles in a powerful hydroelectric generator.
V. Bereznychenko +3 more
semanticscholar +1 more source
In this paper proposed and investigated a capacitive sensor with parallel coplanar electrodes systems for measuring the air gap between the stator core bore and the rotor poles in a powerful hydroelectric generator.
V. Bereznychenko +3 more
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Hydrogenerators’ Vulnerability Towards Bearing Insulation Systems, Shaft Voltage and Current
Electrical Insulation Conference, 2023Due to their multiple and unique designs, it appears with time that hydro generating units have very different vulnerability to shaft and bearing currents. Moreover, the experience gained isn’t easily transferred to other field engineers.
J. Pedneault-Desroches +2 more
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2023 15th Electrical Engineering Faculty Conference (BulEF), 2023
This paper describes an application of the finite element method (FEM) to perform electromagnetic field analysis of synchronous hydrogenerators when replacing the non-ferromagnetic wedges in the stator slots with magnetic wedges with different height ...
V. Petrov, P. Rizov
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This paper describes an application of the finite element method (FEM) to perform electromagnetic field analysis of synchronous hydrogenerators when replacing the non-ferromagnetic wedges in the stator slots with magnetic wedges with different height ...
V. Petrov, P. Rizov
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Improved hydrogenerator rotor thermal supervision
2023The 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
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2023 IEEE 14th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED), 2023
Frequency Response Analysis (FRA) is a well-known technique used for power transformer condition monitoring for more than 40 years. Some research lines use this technique in other machines such as synchronous machines. This paper presents onsite tests on
Unai Albizuri-Txurruka +3 more
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Frequency Response Analysis (FRA) is a well-known technique used for power transformer condition monitoring for more than 40 years. Some research lines use this technique in other machines such as synchronous machines. This paper presents onsite tests on
Unai Albizuri-Txurruka +3 more
semanticscholar +1 more source
2023 IEEE 4th KhPI Week on Advanced Technology (KhPIWeek), 2023
In the paper a present results, which are devoted to the system of monitoring the technical condition and the process of detecting defects of the hydrogenerator based on the control of mechanical defects with air gap sensor.
I. Zaitsev +4 more
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In the paper a present results, which are devoted to the system of monitoring the technical condition and the process of detecting defects of the hydrogenerator based on the control of mechanical defects with air gap sensor.
I. Zaitsev +4 more
semanticscholar +1 more source
A digital governor for hydrogenerators
IEEE Transactions on Energy Conversion, 1988The authors describe the development and testing of a microcomputer-based digital governor for hydrogenerators. The digital governor was shown to approximate the control function of existing analog controllers. This task was performed as a first step to future work intended to utilize the versatility of microcomputers in effecting more sophisticated ...
L.D. Murphy, L. Wozniak, T.A. Whittemore
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