Abstract
One of the main challenges of voltage source converter based HVDC systems is DC faults. In this paper, two different modified half-bridge modular multilevel converter topologies are proposed. The proposed converters offer a fault tolerant against the most severe pole-to-pole DC faults. The converter comprises three switches or two switches and 4 diodes in each cell, which can result in less cost and losses compared to the full-bridge modular multilevel converter. Converter structure and controls are presented including the converter modulation and capacitors balancing. MATLAB/SIMULINK simulations are carried out to verify converter operation in normal and faulty conditions.
| Original language | English |
|---|---|
| Title of host publication | Industrial Electronics Society, IECON 2014 |
| Subtitle of host publication | 40th Annual Conference of the IEEE |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 4676-4682 |
| Number of pages | 7 |
| ISBN (Electronic) | 9781479940325 |
| ISBN (Print) | 9781479940318 |
| DOIs | |
| Publication status | Published - 29 Oct 2014 |
| Event | 40th Annual Conference of the IEEE Industrial Electronics Society - Dallas, Texas, United States Duration: 29 Oct 2014 → 1 Nov 2014 |
Conference
| Conference | 40th Annual Conference of the IEEE Industrial Electronics Society |
|---|---|
| Abbreviated title | IECON 2014 |
| Country/Territory | United States |
| City | Dallas, Texas |
| Period | 29/10/14 → 1/11/14 |
Keywords
- Bridge circuits
- Capacitors
- Circuit faults
- Modulation
- Power conversion
- Topology