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A New Method for Islanding Detection of Inverter-Based Distributed Generation Using DC-Link Voltage Control

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4 Author(s)
Vahedi, H. ; Dept. of Electr. Eng., Univ. of Zanjan, Zanjan, Iran ; Noroozian, R. ; Jalilvand, A. ; Gharehpetian, G.B.

This paper presents a new method for islanding detection of inverter-based distributed generation (DG). The main idea of this paper is to change the dc-link voltage considering the PCC voltage changes during islanding condition. A simple islanding detection scheme has been designed based on this idea. The proposed method has been studied under multiple-DG operation modes and the UL 1741 islanding tests. The simulations results, carried out by MATLAB/Simulink, show that the proposed method has a small nondetection zone. Also, this method is capable of detecting islanding accurately within the minimum standard time.

Published in:
Power Delivery, IEEE Transactions on  (Volume:26 ,  Issue: 2 )

Date of Publication: April 2011

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