Vorträge und Posterpräsentationen (mit Tagungsband-Eintrag):
T. Fuchslueger, M. Vogelsberger, H. Ertl:
"Reducing dv/dt of Motor Inverters by Staggered-Edge Switching of Multiple Parallel SiC Half-Bridge Cells T";
Vortrag: PCIM,
Nürnberg, Germany;
16.06.2017
- 18.06.2017; in: "PCIM Europe 2017",
VDE,
(2017),
ISBN: 978-3-8007-4424-4;
S. 7
- 673.
Kurzfassung englisch:
A novel concept for reducing the output voltage dv/dt of PWM inverters (especially for traction motor applications) is proposed which however keeps high semiconductor switching speed resulting in low switching losses. Each phase of the intended converter is formed by a parallel arrangement of half-bridge legs which are PWM operated such that a small time-delay is given between the legs (time staggered switching). The output voltages of the legs subsequently are combined by an interphase transformer/inductor network/device to a total output voltage of staircase-type switching edge behavior which finally leads to a much lower dv/dt at the motor terminals despite high-speed semiconductor switching. The paper describes the basic principle and application variants, the dimensioning and the required current balancing. Finally, measurements taken from a laboratory testing setup are presented.
Elektronische Version der Publikation:
http://publik.tuwien.ac.at/files/publik_265876.pdf