Title :
Voltage balancing strategy discussion on modular multilevel DC/DC converter
Author :
Zhaohui Wang;Junming Zhang
Author_Institution :
College of Electrical Engineering, Zhejiang University, Hangzhou China
Abstract :
For power electronic transformer (PET) application, a modular multilevel dc-dc converter has been proposed. Only one high frequency transformer is used for voltage matching and power delivery, which substantially simplifies the circuit and the galvanic insulation issue. To guarantee viable operation of the converter, the voltage of each submodule must be balanced. In this paper, three voltage balancing strategies are discussed. The experimental results from a down-scaled prototype comply with the theoretical analysis very well.
Keywords :
"Switches","Power generation","Voltage control","Power transformer insulation","Positron emission tomography","Insulation","Medium voltage"
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2015 IEEE
Electronic_ISBN :
2329-3748
DOI :
10.1109/ECCE.2015.7309809