Improved Control Strategy of Wind Turbine with DFIG for Low Voltage Ride through Capability

Abstract:

As the number of doubly fed induction generator (DFIG)- based wind-turbine systems continues to increase, wind turbines are required to provide Low Voltage Ride-Through (LVRT) capability, especially under the condition of grid voltage dips. This paper, depending on the operating characteristics of doubly-fed induction generator during grid faults ,deals with a protection and control strategy on rotor-side converter (RSC) to enhance the low voltage ride through capability of a wind turbine driven doubly fed induction generator (DFIG). The simulation and experiment studies demonstrate the correctness of the developed model and the effectiveness of the control strategy for DFIG-based wind-turbine systems under such adverse grid conditions.

• Periodical: Applied Mechanics and Materials (Volume 707)
• Pages: 329-332
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.707.329
• Online since: December 2014
• Authors: Li Ling Sun, Dan Fang*
• Keywords: Doubly Fed Induction Generator (DFIG), Grid Voltage Dips, Low Voltage Ride through (LVRT), Rotor-Side Converter (RSC)

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