Title :
Optimization of current sharing between two inverter bridges by iterative simulations
Author :
Sasic, B. ; Zivanov, Milos ; Lazic, M.
Author_Institution :
Spellman High Voltage, New York, NY, USA
Abstract :
Two full-bridge inverters are connected in parallel in order to increase power of a programmable AC source. Lossless current sharing by adding balancing inductors was investigated. Effects of IGBT parameter tolerances and temperature variations were analysed. It was found that manufacturing tolerances of balancing inductors have greater effect on the current sharing than IGBT parameter variations. Adding the inductors in series with both power rails, positive and negative, of the bridges reduces required inductance and improves current sharing. Results of the analysis will be used to build an experimental circuit.
Keywords :
inductors; insulated gate bipolar transistors; invertors; iterative methods; optimisation; power bipolar transistors; IGBT parameter tolerance effects; IGBT parameter variations; balancing inductors; current sharing optimization; full-bridge inverters; inverter bridges; iterative simulations; lossless current sharing; power rails; programmable AC source; temperature variations; Bridge circuits; Inductance; Inductors; Insulated gate bipolar transistors; Integrated circuit modeling; Inverters; Current Sharing; Inverter Bridge; Programmable AC Source;
Conference_Titel :
Power Electronics and Motion Control Conference (EPE/PEMC), 2012 15th International
Conference_Location :
Novi Sad
Print_ISBN :
978-1-4673-1970-6
Electronic_ISBN :
978-1-4673-1971-3
DOI :
10.1109/EPEPEMC.2012.6397279
