High Frequency Hard-Switching Isolating DC-DC Converter for Auxiliary Power Supply for Trolleybusses
Conference: PCIM Europe 2014 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/20/2014 - 05/22/2014 at Nürnberg, Deutschland
Proceedings: PCIM Europe 2014
Pages: 8Language: englishTyp: PDFPersonal VDE Members are entitled to a 10% discount on this title
Hruska, Miroslav (SKODA ELECTRIC a. s., Czech Republic)
Jara, Martin (RICE, University of West Bohemia in Pilsen, Czech Republic)
Among the most important requirement on converters used within a structure of auxiliary power supply (APS) generally in the area of light traction belong the size and total mass as they are usually placed in a spatially limited container. Increasing switching frequency and employing latest low loss and high-speed switching devices is one of the ways how to shrink converters size and thus increase power density. This paper describes hard switching 11kW DC/DC converter built on SiC JFET transistors working at 100 kHz with triangular current waveform which is supposed to provide isolation function within the APS. Practical results and experimental verification of a laboratory prototype are presented as well.