Comparison of cascaded multilevel converter topologies for AC/AC conversion
Authors:
- 1 May 2014
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 21506078,p. 1087-1094
Abstract
This paper presents a simplified qualitative comparison of previously presented cascaded multilevel converter topologies for ac-ac conversion with particular emphasis on motor drive applications. Performance criteria such as the pulsation of the stored energy in the cell capacitors and the total required semiconductor rating are derived by analytical methods. The main conclusion is that the back-to-back connected modular multilevel converter operates best at synchronous speed, whereas the modular matrix converter and Hexverter are better suited for low-frequency output. However, by injecting circulating currents in the phase arms the operating region can be extended for all of the studied topologies.Keywords
This publication has 13 references indexed in Scilit:
- On Energy Storage Requirements in Modular Multilevel ConvertersIEEE Transactions on Power Electronics, 2014
- On energy variations in modular multilevel converters with full-bridge submodules for Ac-Dc and Ac-Ac applications2013
- A broad range of frequency control for the modular multilevel cascade converter based on triple-star bridge-cells (MMCC-TSBC)2013
- Optimal injection of harmonics in circulating currents of modular multilevel converters for capacitor voltage ripple minimization2013
- Control of the modular multilevel cascade converter based on triple-star bridge-cells (MMCC-TSBC) for motor drives2012
- Capacitor voltage ripple shaping in modular multilevel converters allowing for operating region extension2011
- Comparison of Cascaded H-Bridge and Modular Multilevel Converters for BESS application2011
- Low output frequency operation of the Modular Multi-Level Converter2010
- A modular direct converter for transformerless rail interties2010
- A new family of matrix converters2002