Title :
Front-end converter system for distributed power supply
Author :
Hadjivassilev, S.T. ; Pforr, J. ; Hobson, L.
Author_Institution :
Sch. of Sci. & Technol., Teesside Univ., Middlesbrough, UK
Abstract :
A power converter system has been developed for application as a front-end power converter for distributed power supplies. The system consists of a cascade connection of a novel three-phase rectifier stage with a push-pull buck power converter as a first stage and a resonant half-bridge power converter as a second stage. Analysis of the converter has been derived and a design procedure has been formulated. The final converter design has been simulated using the circuit simulation program PSPICE. Finally, a full-size prototype converter has been built and tested to prove theoretical results. The developed converter system provides a transformer-isolated output voltage of 48 V when operated off-line from a 415 V three-phase mains supply. The maximum output power delivered to the load is 2.5 kW. The converter provides nearly sinusoidal input current waveforms with approximately unity power factor drawn from all three phases of the three-phase supply
Keywords :
bridge circuits; circuit analysis computing; digital simulation; load (electric); network synthesis; power convertors; power factor; power supplies to apparatus; rectifiers; software packages; 2.5 kW; 415 V; 48 V; PSPICE; circuit analysis computing; circuit simulation; design; distributed power supply; front-end power converter; load; mains supply; network synthesis; power factor; push-pull buck power converter; resonant half-bridge power converter; three-phase rectifier;
Conference_Titel :
Power Electronics and Applications, 1993., Fifth European Conference on
Conference_Location :
Brighton
