Study on a modified multilevel cascade inverter with hybrid modulation

Author

Zhang, Jie ; Yunping Zou ; Zhang, Xian ; Ding, Kai

Author_Institution

Dept. of Electr. & Electron. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

1

fYear

2001

fDate

22-25 Oct. 2001

Firstpage

379

Abstract

Traditional multilevel inverters in high voltage high power applications have some problems associated with their low frequency switching which produces high harmonic distortion. To solve the problem, this paper presents a topology of a modified multilevel cascade voltage source inverter (VSI) with different DC voltage sources. Also, the modified multilevel cascade VSI using H-bridge is modeled and analyzed with circuit DQ transform in detail. To implement the novel multilevel Inverter, a hybrid modulation strategy is presented through theoretical analysis. The simulation and experimental results are given to verify the feasibility.

Keywords

DC-AC power convertors; bridge circuits; harmonic distortion; invertors; modulation; power conversion harmonics; switching circuits; DC voltage sources; H-bridge; VSI; circuit DQ transform; harmonic distortion; high voltage high power applications; hybrid modulation; low frequency switching; modified multilevel cascade inverter; voltage source inverter; AC generators; Character generation; Circuit analysis; Circuit simulation; Circuit topology; Frequency synthesizers; Insulated gate bipolar transistors; Pulse width modulation; Pulse width modulation inverters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems, 2001. Proceedings., 2001 4th IEEE International Conference on

Print_ISBN

0-7803-7233-6

Type

conf

DOI

10.1109/PEDS.2001.975343

Filename

975343