Abstract：Anti-islanding protection is a mandatory feature for grid-connected inverters. A desired islanding detection method not only can detect islanding within acceptable duration, but also have less adverse impact on power quality. This paper analyzes the total harmonics distortion(THD)of grid-connected inverter. The connection of output current THD and anti-islanding algorithm is discussed. Based on it, an improved active frequency-drift method is introduced, which can meet the requirement of anti-islanding standard and has less distortion on inverter current. Simulation and experiments are developed to validate the proposal.
邓燕妮, 桂卫华. 一种低畸变的主动移频式孤岛检测算法[J]. 电工技术学报, 2009, 24(4): 219-223.
Deng Yanni, Gui Weihua. An Improved Active Frequency-Drift Method for Islanding Detection With Low Harmonics Distortion. Transactions of China Electrotechnical Society, 2009, 24(4): 219-223.
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2009, Vol. 24 
