• Home|About JOPS|Editorial Board|Contact us|Chinese
Latest Papers more>>
HAN Jun,HAN Jingang,HUANG He,CHEN Haofei,CHWN Xi,SHI Jing.Research on Hybrid Cascaded Multi-level Converter with Floating Capacitor[J].JOURNAL OF POWER SUPPLY,2018,16(6):71-76
Research on Hybrid Cascaded Multi-level Converter with Floating Capacitor
Received:October 08, 2016  Revised:January 07, 2018
View Full Text  View/Add Comment  Download reader
DOI:10.13234/j.issn.2095-2805.2018.6.71
Keywords:floating capacitor  multi-level inverter  capacitor voltage  field programmable gate array(FPGA)
Fund Project:Project Supported by Shanghai Municipal Natural Science Foundation (15ZR1419800)
                 
AuthorInstitutionEmail
HAN Jun Economic Research Institute, State Grid Jiangsu Electric Power Co., Ltd, Nanjing , China
HAN Jingang Logistics Engineering College, Shanghai Maritime University, Shanghai , China jghan@shmtu.edu.cn
HUANG He State Grid Jiangsu Electric Power Co., Ltd, Nanjing , China
CHEN Haofei Economic Research Institute, State Grid Jiangsu Electric Power Co., Ltd, Nanjing , China
CHWN Xi Economic Research Institute, State Grid Jiangsu Electric Power Co., Ltd, Nanjing , China
SHI Jing Economic Research Institute, State Grid Jiangsu Electric Power Co., Ltd, Nanjing , China
Hits: 621
Download times: 349
Abstract:
      Based on the conventional cascaded multi-level converter, a hybrid client-server cascaded multi-level converter is presented in this paper. This converter is composed of a conventional asymmetric 3-level H-bridge and a symmetric H-bridge. As the main converter unit, the asymmetric H-bridge is directly powered by a DC power source, while the symmetric H-bridge acting as a supplementary converter unit is powered by a floating capacitor. Compared with the conventional cascaded multi-level converter, this topology needs fewer devices when generating the same number of output levels. The operation principle of the converter and the balance control method of the floating capacitor were analyzed in detail, and simulation analysis was carried out based on MATLAB/SIMULINK. Finally, an experimental device was fabricated, and its real-time control was realized by means of a field programmable gate array(FPGA) controller. The correctness of theoretical analysis was validated by the comparison between simulation and experimental results.
Close