Islanding Detection of Integrated Wind Energy System with Variations in DC Link Voltage

Renewable energy integration into the grid is growing in everyday life for meeting the universal energy consumption demand. The main difficulty with the integration of Distributed Generation to the main grid is unintentional islanding. It may affect the field persons and equipment involved with it. As per the DG integration criteria, the islanding must be recognized in less than 2 seconds. This paper has, a new passive islanding detection method has been recommended for detecting unintentional islanding using variations in the DC link voltage. The planned technique detects and classifies the non-islanding cases from islanding events when the changes in DC link voltage are more than a predefined threshold value. The simulation outcomes in Matlab/Simulink show the effectiveness of the recommended method at zero power mismatch balanced islanding.