Abstract
The multiterminal dc wind farm is a promising topology with a voltage-source inverter (VSI) connection at the onshore grid. Voltage-source converters (VSCs) are robust to ac-side fault conditions. However, they are vulnerable to dc faults on the dc side of the converter. This paper analyzes dc faults, their transients, and the resulting protection issues. Overcurrent faults are analyzed in detail and provide an insight into protection system design. The radial wind farm topology with star or string connection is considered. The outcomes may be applicable for VSCs in the multi-VSC dc wind farm collection grid and VSC-based high-voltage direct current (HVDC) offshore transmission systems.
| Original language | English |
|---|---|
| Article number | 5446298 |
| Pages (from-to) | 2308-2318 |
| Number of pages | 11 |
| Journal | IEEE Transactions on Power Delivery |
| Volume | 25 |
| Issue number | 4 |
| Early online date | 12 Apr 2010 |
| DOIs | |
| Publication status | Published - Oct 2010 |
Bibliographical note
© 2010 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Keywords
- fault overcurrent
- multiterminal dc wind farm
- voltage-source converter (VSC)
- wind power generation