Title :
Modern soft-switching topology for galvanic insulated railways auxiliary converter
Author :
Porzio, M. ; Frasca, R. ; Cascone, B. ; Fratelli, L. ; Giannini, G. ; Improta, V. ; DellaValle, D. ; Andreozzi, F.
Author_Institution :
AnsaldoBreda S.p.A., Naples, Italy
Abstract :
A high-efficiency high-frequency link inverter design with bi-directional power flow, using a zero-voltage-switching (ZVS) technique is proposed. The considered configuration includes a HF full-bridge inverter, a HF transformer, a 3-phase cycloconverter; Required bidirectional switches have been composed by anti-series IGBT connection. Main advantages of the topology are weight and size reduction, by elimination of intermediate filter and reduction of number of stages. A novel digital control strategy is presented, and performances are evaluated by means of numerical simulation, showing its effectiveness.
Keywords :
digital control; invertors; load flow control; numerical analysis; power semiconductor switches; railway electrification; switching convertors; zero voltage switching; 3-phase cycloconverter; HF full-bridge inverter; HF transformer; ZVS technique; antiseries IGBT connection; bidirectional power flow; bidirectional switches; digital control strategy; galvanic insulated railway auxiliary converter; high-efficiency high-frequency link inverter design; intermediate filter elimination; modern soft-switching topology; numerical simulation; zero-voltage-switching technique; Frequency conversion; Frequency modulation; Inverters; Power harmonic filters; Power transformer insulation; Topology; Zero voltage switching; Cycloconverter; High frequency traction auxiliary converter; ZVS Converter;
Conference_Titel :
Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), 2012 International Symposium on
Conference_Location :
Sorrento
Print_ISBN :
978-1-4673-1299-8
DOI :
10.1109/SPEEDAM.2012.6264568
