Zobrazeno 1 - 10
of 376
pro vyhledávání: '"Bernd Ponick"'
Publikováno v:
IEEE Access, Vol 12, Pp 105418-105428 (2024)
The calculation of magnetically induced vibrations in the stator of an electric machine involves, on the one hand, the determination of the magnetic forces originating from the air gap field and, on the other hand, the calculation of the mechanical e
Externí odkaz:
https://doaj.org/article/e7f3cac8103243b984f693da1f7267b1
Publikováno v:
IEEE Access, Vol 11, Pp 79144-79155 (2023)
For the sizing of an electric motor, the diameter and length of the installation space are important parameters that significantly influence and limit the characteristics of the electric motor. From an aerodynamic point of view, it is not technically
Externí odkaz:
https://doaj.org/article/d1575bfb607b44e4b114c66e204e581b
Autor:
Janine Ebersberger, Leon Fauth, Ralf Keuter, Yongtao Cao, Yannik Freund, Richard Hanke-Rauschenbach, Bernd Ponick, Axel Mertens, Jens Friebe
Publikováno v:
IEEE Access, Vol 10, Pp 114514-114539 (2022)
To participate in the transition towards a sustainable use of energy, the aircraft sector needs to be transformed with respect to the energy carrier and propulsion methods. For smaller aircraft, a battery-electric approach is promising. While this wi
Externí odkaz:
https://doaj.org/article/e5aa624a4e384bc899736ed22f84e512
Autor:
Ralf Johannes Keuter, Florian Niebuhr, Marius Nozinski, Eike Krüger, Stephan Kabelac, Bernd Ponick
Publikováno v:
Energies, Vol 16, Iss 14, p 5319 (2023)
To make an all-electric aircraft possible, both high power densities and efficiencies are needed. However, particularly high demands are also placed on the thermal management system. Often, the electric motor and cooling system are considered without
Externí odkaz:
https://doaj.org/article/41a1325885f442ed8db5aaa1651797fa
Autor:
Volker Schneider, Cara Behrendt, Pauline Höltje, Daniel Cornel, Florian Michael Becker-Dombrowsky, Steffen Puchtler, Francisco Gutiérrez Guzmán, Bernd Ponick, Georg Jacobs, Eckhard Kirchner
Publikováno v:
Lubricants, Vol 10, Iss 8, p 194 (2022)
Rolling bearings face different damaging effects: Besides mechanical effects, current-induced bearing damage occurs in electrical drive systems. Therefore, it is of increasing interest to understand the differences leading to known electrical damage
Externí odkaz:
https://doaj.org/article/eee28be49fda4b7582f12fdd0ff6bec2
Autor:
Sebastian Lengsfeld, Sebastian Sprunck, Simon Robin Frank, Marco Jung, Marc Hiller, Bernd Ponick, Stefan Mersche
Publikováno v:
Energies, Vol 15, Iss 10, p 3751 (2022)
The design of a fully superconducting wind power generator is influenced by several factors. Among them, a low number of pole pairs is desirable to achieve low AC losses in the superconducting stator winding, which greatly influences the cooling syst
Externí odkaz:
https://doaj.org/article/f37ea240bf7e4633915c04a16acb4e69
Publikováno v:
e & i Elektrotechnik und Informationstechnik. 140:271-280
With the increasing use of novel semiconductor technologies such as SiC and GaN in inverter-fed electrical machines, the switching losses of the power electronics can be reduced. However, this leads to steeper voltage gradients, resulting in a strong
Autor:
Martin Enno Gerlach, Allan de Barros, Xudong Huang, Markus Langfermann, Bernd Ponick, Amir Ebrahimi
Publikováno v:
e & i Elektrotechnik und Informationstechnik. 140:290-301
The vibration and acoustic behavior of electric machines is an important aspect of the design process. A crucial part of the modeling is the correct prediction of the stator’s vibration behavior, characterized by the stator’s eigenfrequencies and
Autor:
Alexander Hoffmann, Bernd Ponick
Publikováno v:
Energies, Vol 15, Iss 1, p 358 (2022)
This article describes a practical method for predicting the distribution of electric potential inside an electrical machine’s winding based on design data. It broadens the understanding of winding impedance in terms of inter-winding behavior and a
Externí odkaz:
https://doaj.org/article/5cefc4dca1564a6b97a2cd01d06c7297
Autor:
Jonas Steffen, Sebastian Lengsfeld, Marco Jung, Bernd Ponick, Mercedes Herranz Gracia, Aristide Spagnolo, Markus Klöpzig, Klaus Schleicher, Klaus Schäfer
Publikováno v:
Energies, Vol 14, Iss 11, p 3106 (2021)
This paper shows a new concept to generate medium voltage (MV) in wind power application to avoid an additional transformer. Therefore, the generator must be redesigned with additional constraints and a new topology for the power rectifier system by
Externí odkaz:
https://doaj.org/article/f1af5c7a71414866a92b9d82532fe402