전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2011년도 전력전자학술대회
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- Pages.83-84
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- 2011
The Harmonic Current Mitigation of DFIG under Unbalanced Grid Voltage and Non-linear Load Conditions
- Thinh, Quach Ngoc (Department of Electrical Engineering, Jeju National University) ;
- Kim, Eel-Hwan (Department of Electrical Engineering, Jeju National University)
- 발행 : 2011.07.05
초록
This paper presents an analysis and a novel strategy for a doubly fed induction generator (DFIG) based wind energy conversion system under unbalanced grid voltage and non-linear load conditions. A proportional-resonant (PR) current controller is applied in both grid side converter (GSC) and rotor side converter (RSC). The RSC is controlled to mitigate the stator active power and the rotor current oscillations at double supply frequency under unbalanced grid voltage while the GSC is controlled to mitigate ripples in the dc-link voltage and compensate harmonic components of the network current. Simulation results using Psim simulation program are presented for a 2 MW DFIG to confirm the effectiveness of the proposed control strategy.
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