| |
A Multilevel Inverter Fed IM Drive with Dodecagonal Voltage Space Vector Structure using a Single DC Source with Linear Modulation Range Near to Base Speed
| [View]
[Download]
|
| Author(s) |
Mathews BOBY |
| Abstract |
A fifth and seventh order harmonic elimination scheme for IM drive with a multilevel dodecagonalvoltage space vector structure using a single DC source is proposed in this work. Single DC sourcerequirement makes four quadrant operation of the drive system simpler compared to the multilevel dodecagonal structures presented in literatures before. The space vector structure consists of six concentricdodecagons, combining the advantages of multilevel operation as well as dodecagonal structure. Thetopology consists of a three-level flying capacitor (FC) inverter cascaded with a capacitor fed H-bridge(CHB) inverter. The FC inverter operating at high voltage switches in a quasi-square wave mode whereasthe CHB inverter operating at a lower voltage switches at high frequency to remove the harmonics generatedby the FC inverter. Switching losses are low, both in the FC and CHB inverters. Experiment resultsfor open-loop V/f operation are included in this paper showing the effectiveness of the drive scheme. |
| Download |
| Filename: | 0004-epe2016-full-11122315.pdf |
| Filesize: | 403.7 KB |
|
| Type |
Members Only |
| Date |
Last modified 2017-04-13 by System |
| |
 |