Abstract
The modular multilevel converter (MMC) is the state-of-the-art for multilevel converter topologies. This study presents the operation of the MMC using the multilevel selective harmonic elimination pulse-width modulation (MSHE-PWM) technique. MSHE-PWM offers tight control of the low-order harmonics and the lowest switching frequency for the power semiconductors among all modulation techniques. A comprehensive analysis of the modulation methods for the MMC leads to two different modulation patterns for MSHE-PWM. A method for selecting the number of sub-modules in the phase-legs of the converter is also proposed in this study. Simulation results for both patterns are provided and verified through matching experimental results from a single phase 11-level laboratory prototype.
| Original language | English |
|---|---|
| Pages (from-to) | 96-107 |
| Number of pages | 12 |
| Journal | IET Power Electronics |
| Volume | 6 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 2013 |
| Externally published | Yes |