2013. — 7 с.Substations are important component in power network, influencing the transmission efficiency and the quality of distributed electricity. They can not only monitor and control power flows but also provide interconnection between generating facilities, transmission and distribution networks and end consumers. In the past 20 years, the substation automation system (SAS) has had rapid development. Communication technology becomes the key technology of SAS. Due to the delay in publishing the corresponding communication protocol, there is difference in the device communication mode and transmission protocol among different vendors. The Intelligent Electronic Devices (IEDs) from different manufacturer cannot interconnect with each other. To realize the interoperability of those IEDs, IEC 61850 standard is published by TC
57. It is the international standard applicable to Substation Automation System. It provides a standardized frame work for substation integration that specifies the communication requirements, the functional characteristics, and the structure of data in devices, the naming conventions for the data, how applications interact and control the devices, and how conformity to the standard should be tested [1]. But depending on the manufacturer’s different understanding of the protocol, the problem of interoperability between devices could occur. Tests are required to carry out to check the performance of IEDs.
The paper will discuss how the test will set up affect the operation of substation communication system and the function the IEC 61850 standards can offer to traditional protection scheme.
