| Abstract [eng] |
The number of microgrids in the world is growing drastically. In many cases, microgrids based on distributed generators, are connected to a medium voltage distribution network to ensure a stable supply of electricity to consumers. In the case of a fault in the distribution network or other unforeseen events, the microgrid starts operating in the island mode, i.e., the sources of microgrid generation continue to supply electricity to consumers, regardless of whether the load with the generation is matched or not, and this scenario may not only damage the consumer devices. because of a sudden changes in frequency and voltage, but also endangers the network's maintenance staff. In this case, there is a need for protection that can detect the island mode quickly and reliably and disconnect the microgrid from the main network. The purpose of this research is to review the potential protection of the island detection and to compare the reliability of passive protection methods in case of various network faults. |
