A Hybrid Method for Islanding Detection of Inverter Interfaced Distributed Generators Utilizing Superimposed Component of d-axis Voltage

This paper deals with the implementation of a hybrid method for islanding detection of inverter interfaced distributed generators (DGs) in a distribution Network. The proposed algorithm requires injection of a low frequency sinusoidal disturbance signal (around 10-20 Hz) into the d-axis current cont...

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Bibliographic Details
Main Authors: Pal, Diptak, Panigrahi, Bijaya Ketan, Kewat, Seema
Format: Conference Proceeding
Language:English
Subjects:
Detection algorithms
Distributed Generators
Distribution Network
Disturbance Injection
Feature extraction
Generators
Inverters
Islanding
Islanding Detection
Signal processing algorithms
Superimposition
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Summary:This paper deals with the implementation of a hybrid method for islanding detection of inverter interfaced distributed generators (DGs) in a distribution Network. The proposed algorithm requires injection of a low frequency sinusoidal disturbance signal (around 10-20 Hz) into the d-axis current control loop of the Distributed Generators (DGs). Thereafter, it utilizes two different features obtained from the superimposed component of d-axis voltage sensed at the point of common coupling (PCC) of the DGs for detecting unintentional islanding event. The decision logic that is made out of these two features enables faster detection of islanding events of DGs and also helps in accurately discriminating unintentional islanding from other kind of events such as load switching, sudden voltage sag at PCC and others. Numerous simulation studies are performed with generic UL 1741/IEEE 1547 anti-islanding test system developed on MATLAB/Simulink platform to validate the efficacy of the proposed algorithm.
ISSN:2329-3748
DOI:10.1109/ECCE.2019.8912941