Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Jochen Dittmann"'
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
Publikováno v:
2022 25th International Conference on Electrical Machines and Systems (ICEMS).
Publikováno v:
2022 International Conference on Electrical Machines (ICEM).
Publikováno v:
2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM).
Publikováno v:
e & i Elektrotechnik und Informationstechnik. 138:117-124
Die Anzahl umrichtergespeister elektrischer Maschinen nimmt aufgrund der guten Regelbarkeit des Motors und der mittlerweile niedrigen Anschaffungskosten zu. Die durch die Leistungshalbleiter an den Klemmen der elektrischen Maschine eingepragten steil
Autor:
Jochen Dittmann, Gerd Rudolph
Publikováno v:
Journal of Geometry and Physics. 10:93-106
We investigate a connection governing parallel transport along mixed states recently defined by Uhlmann for the case of 2 × 2 matrices. We discuss the underlying bundle structure including singular orbits, show an interesting relation to instantons
Autor:
Gerd Rudolph, Jochen Dittmann
Publikováno v:
Journal of Mathematical Physics. 33:4148-4154
A class of connections governing parallel transport along nondegenerate density matrices is discussed. These connections are given by certain analytic functions. We develop a calculus for operator‐valued differential forms, which enables us to calc