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http://dx.doi.org/10.6113/TKPE.2018.23.6.373

Performance Evaluation of Islanding Detection Method by Phase Shifted Feed-Forward Voltage in Steady-State Grid Condition  

Kim, Dong-Uk (Division of Electrical Eng., Hanyang University, ERICA Campus)
Kim, Sungmin (Division of Electrical Eng., Hanyang University, ERICA Campus)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.23, no.6, 2018 , pp. 373-380 More about this Journal
Abstract
This study proposes a new islanding detection method that uses the phase shift of feed-forward voltage and evaluates the performance of an existing method and the proposed method when the grid frequency changes within the allowable range under steady-state conditions. The investigated existing method, which is slip mode frequency shift (SMS), uses current phase shift to detect islanding. The SMS method supplies reactive current to the grid under this condition, but the proposed method does not generate additional reactive power because it does not depend on the current control loop. The performance in steady-state grid condition is evaluated through simulations and experiments.
Keywords
Anti-islanding detection; Feed-forward voltage; Grid connected inverter; Grid frequency variation; SMS(Slip Mode Frequency Shift);
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