Simulation of Islanding Detection for Photovoltaic Grid-Connected Inverters Based on Positive Feedback Intermittent Frequency Drift

Abstract:

Islanding detection is a absolutely necessary function for Photovoltaic Grid-Connected Inverters and it is very important to detect the islanding accurately and quickly with less adverse impact on power quality. This paper proposes a positive feedback intermittent active frequency drift method which can decrease the adverse impact of frequency disturbance effectively within the time restrict of islanding detection according to that of traditional islanding detection methods. The theoretical analysis and simulation results show that this algorithm which is simple, effective, fast and have less adverse impact on power quality and has certain application value.

• Periodical: Advanced Materials Research (Volumes 383-390)
• Pages: 2596-2602
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.383-390.2596
• Online since: November 2011
• Authors: Xiao Jun Ming, Zhu Yong Sheng, Xu Qi Ying, Wang Dong Yun
• Keywords: Intermittent Active Frequency Drift, Islanding Detection Method (IDM), Photovoltaic Grid-Connected Inverters

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