Abstract
Three-channel controller of FB-MMC HVDC that enables four-quadrant operation on DC side and fault ride through on AC and DC sides without blocking IGBTs is proposed. Phasor modeling of FB MMC is studied to provide insight into independent AC and DC control. Three modulation indices are used: the conventional d-axis, q-axis AC-side modulation indices Md, Mq and a newly proposed DC modulation index Mdc. Dedicated control of arm sum voltages and DC current are proposed. The controller is thoroughly tested on EMTP/RV model. It is demonstrated that DC power can be independently controlled regardless of DC voltage (including negative DC voltage) and operation in all four quadrants is verified. The reactive power support to the AC system is provided at any values of positive, negative or zero DC voltage. Safe and continuous operation of FB-MMC without blocking IGBTs is verified. Additional control for extinguishing DC fault arc is also illustrated.
| Original language | English |
|---|---|
| Title of host publication | 19th International Symposium on Power Electronics, Ee 2017 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 1-6 |
| Number of pages | 6 |
| Volume | 2017-December |
| ISBN (Electronic) | 9781538635018, 9781538635025 |
| ISBN (Print) | 9781538635032 |
| DOIs | |
| Publication status | Published - 8 Dec 2017 |
| Event | 19th International Symposium on Power Electronics, Ee 2017 - Novi Sad, Serbia Duration: 19 Oct 2017 → 21 Oct 2017 |
Conference
| Conference | 19th International Symposium on Power Electronics, Ee 2017 |
|---|---|
| Country/Territory | Serbia |
| City | Novi Sad |
| Period | 19/10/17 → 21/10/17 |
| Other | Symposium will be held at Novi Sad, on 23th to 26th October, 2019, in the Central Building of the University of Novi Sad, Novi Sad, Republic of Serbia. |
Keywords
- DC Fault Ride Through
- Full Bridge MMC
- HVDC
- HVDC Converter
- MMC