Results 1 to 10 of about 550 (166)
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 +3 more sources
Stress-Strained State of the Thrust Bearing Disc of Hydrogenerator-Motor
Computation, 2023 In this article, the main causes of vibration in the thrust bearing of hydrogenerator motors rated 320 MW are considered. The main types of internal and surface defects that appear on the working surface of the thrust bearing disc during long-term ...
Dmytro Brega +2 more
exaly +4 more sources
Energies, 2023 In this paper, a three-dimensional turbulent fluid dynamics numerical model of a 311 MVA full hydroelectric power plant unit is made, using the finite element method, to study and understand the ozone transport mechanisms inside the enclosured electric ...
Rodrigo M S de Oliveira +2 more
exaly +4 more sources
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
doaj +4 more sources
IEEE Access, 2022 Ventilation cooling design is one of the key technologies during the design of large hydrogenerator. With the increase of hydrogenerator capacity, the overheating problem of rotor region become more and more serious.
Baojun Ge, Weili Li, Ping Zheng
exaly +3 more sources
IEEE Access, 2021 Thermal management is often considered a bottleneck in the pursuit of the next generation hydrogenerator in the electric power system. Overheating of the complex rotor parts has become one of the main problems affecting safe and stable hydrogenerator ...
Baojun Ge, Weili Li, Yutian Sun
exaly +3 more sources
The technology of restoration hydrogenerator rotor shape
Авіаційно-космічна техніка та технологія, 2023 The object of research in this article is the change in the rotor shape during the operation of hydraulic units. The subject of study in this article is the design and geometric state of the shape of a rotor with irregular geometry of hydraulic ...
Pavlo Makarov
doaj +2 more sources
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
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Estimation of hydrogenerator rotor dynamic thermal margine [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2022 Field winding temperature of the synchronous generator is one of limiting factors shaping generator PQ capability curve. Therefore of great operational importance is to have information about this temperature estimated with the utmost accuracy. It can be
Klasnić Ilija +4 more
doaj +1 more source
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
doaj +1 more source