Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Georg Traxler-Samek"'
Autor:
Daniel Langmayr, Georg Traxler-Samek
Publikováno v:
e & i Elektrotechnik und Informationstechnik. 136:216-223
In grosen luftgekuhlten Hydrogeneratoren in Synchronmaschinen-Ausfuhrung werden die anfallenden Verluste uber einen erzwungenen Kuhlluftstrom gekuhlt. Zur Vermeidung hoher Ventilationsverluste, die durch Luftreibung und den entsprechenden Aufwand fur
Autor:
Michael Lecker, Georg Traxler-Samek
Publikováno v:
2020 International Conference on Electrical Machines (ICEM).
High-voltage stator windings for large salient-pole synchronous machines in hydro power applications are designed based on manufacturing, maintenance, cost and electromagnetic performance issues. This paper discusses various aspects for designing sta
Publikováno v:
2020 International Conference on Electrical Machines (ICEM).
The design of large hydro-generators is a multi-disciplinary optimization task, comprising electromagnetic, mechanical as well as cooling issues, which often lead to contradictory requirements.The often used analytical algorithms are based on simplif
Publikováno v:
2020 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM).
The parameters of a single-phase synchronous generator given as single-phase per-unit values from manufacturer data are converted into three-phase per-unit values. The parameter calculation is exemplified here for the manufacturer data of a typical s
Publikováno v:
IEEE Transactions on Industrial Electronics. 59:2258-2266
In rotating electrical machines, the air-gap magnetic field causes radial forces on the stator core physically based on the Maxwell stress. These radial force waves do not contribute to the torque generation of the machine but may lead to dangerous v
Publikováno v:
e & i Elektrotechnik und Informationstechnik. 128:181-187
In rotierenden elektrischen Maschinen werden die verschiedenen Aktivelemente der Maschine durch Verluste erwarmt. Aus diesem Grund werden luftgekuhlte Grosgeneratoren mit Hilfe eines vorgegebenen Kuhlluftstroms gekuhlt. In dieser Arbeit wird ein geko
Additional Losses in the Damper Winding of Large Hydrogenerators at Open-Circuit and Load Conditions
Publikováno v:
IEEE Transactions on Industrial Electronics. 57:154-160
Large salient-pole synchronous machines are typically equipped with a damper winding. At steady-state conditions, parasitic voltages are induced in the damper bars which lead to a current flow with associated power losses. This paper describes an ana
Publikováno v:
IEEE Transactions on Industrial Electronics. 57:172-180
At steady-state operation, power losses cause a heating of rotating electrical machines. In air-cooled machines, these losses are evacuated by a forced cooling airflow through the active parts. When designing and optimizing such a machine, the design
Publikováno v:
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering. 22:1126-1141
A novel analytic method for determining the no‐load voltage shape of salient pole synchronous generators is presented. The algorithm takes into account the full influence of the damper winding and the saturation effects in the stator teeth. Main in
Publikováno v:
The XIX International Conference on Electrical Machines - ICEM 2010.
In large salient-pole synchronous machines the magnetic field crossing the air-gap causes radial forces on the stator core physically described by the Maxwell-stress. These force waves do not contribute to the torque but may lead to dangerous vibrati