Abstract
This paper proposes a new converter protection method, primarily based on a series dynamic resistor (SDR) that avoids the doubly-fed induction generator (DFIG) control being disabled by crowbar protection during fault conditions. A combined converter protection scheme based on the proposed SDR and conventional crowbar is analyzed and discussed. The main protection advantages are due to the series topology when compared with crowbar and dc-chopper protection. Various fault overcurrent conditions (both symmetrical and asymmetrical) are analyzed and used to design the protection in detail, including the switching strategy and coordination with crowbar, and resistance value calculations. PSCAD/EMTDC simulation results show that the proposed method is advantageous for fault overcurrent protection, especially for asymmetrical faults, in which the traditional crowbar protection may malfunction.
| Original language | English |
|---|---|
| Article number | 5404230 |
| Pages (from-to) | 422-432 |
| Number of pages | 11 |
| Journal | IEEE Transactions on Energy Conversion |
| Volume | 25 |
| Issue number | 2 |
| Early online date | 2 Feb 2010 |
| DOIs | |
| Publication status | Published - Jun 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
- converter protection scheme
- doubly-fed induction generator (DFIG)
- fault ride-through (FRT)
- series dynamic resistor (SDR)
- wind power generation