A Novel Passive Islanding Detection Method for Distributed Generation

Abstract

Off-grid and On-grid are two technologies that allow renewable energy sources to run continuously. The system can be networked in the first scenario, and it can operate independently or as a microgrid in the second. The decentralised generator (DG) can run in island mode even if there isn't an external power supply accessible. This circumstance may prohibit the equipment from correctly joining, endangering the auxiliary system. In order to find island patterns at particular times, this research suggests a passive method. There may be problems with island detection (ID) when using DG systems like P.V. Additionally, the identification accuracy will be impacted by the quantity of DG devices in the power distribution system. The suggested remedy has really been put into practice in a test example involving a network-connected DC power source operating at 415 V and 50 Hz. The MATLAB Simulink environment was used to assess the method's efficacy. This technique speeds up detection and improves the THD.