Fault ride-through capability of a DFIG in isolated grids employing DVR and supercapacitor energy storage
作者： Spyros I. Gkavanoudis , Charis S. Demoulias
DOI: 10.1016/J.IJEPES.2014.12.068
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摘要: Abstract In order to utilize Doubly Fed Induction Generators (DFIGs) as primary power source in an isolated system, they should be able regulate the voltage and frequency of system well ride-through faults. This paper proposes a new control strategy for DFIG operating accomplished by Dynamic Voltage Restorer (DVR) Supercapacitor Energy Storage System (SCESS), ride through symmetrical asymmetrical During faults, continues operate normally, while active mismatch is handled SCESS. particular, during DVR are properly controlled feed non-faulty phases uninterruptedly. When integrated with conventional synchronous generators, proposed improves Fault Ride-Through (FRT) capability DFIG, providing support throughout fault duration. Thus, transient stability significantly improved. The effectiveness method under different conditions verified detailed simulation results.
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