Power distribution protection scheme enhanced with communication

The paper proposes a communication-based protection scheme for distribution networks with distributed generators. Emphasis is put on making the scheme flexible for various network configurations. Extensive simulation studies demonstrate the proper operation of the protection scheme. The paper looks additionally at the current capabilities in communication-enhanced protection made possible by standardized protocols (IEC 61850) and mechanisms (Ethernet). It finally discusses techniques to encompass intersubstation communications and examines issues that need to be addressed to create a successful, secure and dependable communication network.