An Improved Control Strategy for DFIG Low Voltage Ride-Through Using Optimal Demagnetizing method
| Autor: | Mahdi Jafari Harandi, Esmail Nikravesh, Mohammad Tavakoli Bina, Sahand Ghaseminejad Liasi |
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| Rok vydání: | 2019 |
| Předmět: |
Crowbar
Rotor (electric) Computer science 020209 energy 020208 electrical & electronic engineering Induction generator 02 engineering and technology Fault (power engineering) Overcurrent law.invention Control theory law Overvoltage 0202 electrical engineering electronic engineering information engineering Transient (oscillation) Low voltage ride through |
| Zdroj: | 2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC). |
| Popis: | Direct connection of doubly fed induction generators (DFIG) to electricity network would cause overcurrent and DC link overvoltage during transient faults. One of the widespread methods to cope with this problem is employing crowbar; using crowbar, however, results in uncontrollability of both rotor and grid side converters. In this paper, using optimal demagnetization method, duration of this uncontrollability has been reduced; then, by injecting reactive current during fault, fault ride through is realized. The proposed method has been validated by MATLAB/SIMULINK simulation for a 9 MW generator. |
| Databáze: | OpenAIRE |
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