Title :
Concept of 50 kW DC/DC converter based on ZVS, quasi-ZCS topology and integrated thermal and electromagnetic design
Author :
Pavlovsky, M. ; de Haan, S.W.H. ; Ferreira, J.A.
Author_Institution :
Dept. of Electr. Power Process., Delft Univ. of Technol.
Abstract :
A converter concept in the multi-kilowatt class with a high power density being the main goal is presented. High power density is achieved by implementing: ZVS, quasi-ZCS topology and integrated thermal and electromagnetic design. ZVS, quasi-ZCS topology reduces switching losses of IGBT switches and hence improves converter efficiency at high frequencies. Integrated thermal and electromagnetic design is used in high-power, high power density transformer which uses amorphous cores and foil winding technology together with heat pipes. A fully functional 50 kW DC/DC converter (750 V/600 V) and a virtual converter prototype demonstrate the possibilities of the converter concept. High power density (up to 13 kW/l without heatsink) and high efficiency (up to 97%) are achievable by using the proposed converter concept
Keywords :
DC-DC power convertors; cores; design engineering; heat pipes; insulated gate bipolar transistors; losses; power transformers; switching convertors; transformer windings; zero current switching; zero voltage switching; 50 kW; 600 V; 750 V; DC/DC converter; IGBT switches; ZVS; amorphous cores; electromagnetic design; foil winding technology; heat pipes; high power density transformer; quasi-ZCS topology; switching losses reduction; thermal design; Amorphous materials; DC-DC power converters; Frequency conversion; Insulated gate bipolar transistors; Switches; Switching converters; Switching loss; Topology; Transformer cores; Zero voltage switching; DC/DC converter; High power; High power density; heat pipes; resonant converter; transformer;
Conference_Titel :
Power Electronics and Applications, 2005 European Conference on
Conference_Location :
Dresden
Print_ISBN :
90-75815-09-3
DOI :
10.1109/EPE.2005.219307
