Figure 3 Representation of anti-islanding detection methods
[16].
Remote Anti-Islanding
Methods
The remote methods are relies on the communication links between the
utility power grid and DG sources. These methods have the high
efficiency, have better reliability than local IdMs and have negligible
NDZ [14].But it is costly, need a stiff infrastructure, updated
improvement in communication, high computational burden [15]. Figure
4 shows a schematic of the remote islanding detection technique, where
the main grid and DG unit share the information using a communication
channel. Islanding detection is mainly based on the information
collected and sent from transmitter from the applied media to the
receiver at tripping switch. The common examples of remote IdMs include
supervisory control and data acquisition (SCADA), power line
communication (PLC), and transfer trip.