IEC 61850 Based Protection Systems (original) (raw)

The chapter includes protection power systems based on the IEC 61850 protocol for data communication systems between substations. The IEC 61850 is adequate for real time communication between IED based on GOOSE messages. The chapter includes the case study from the Romanian power systems: implementation of protection and remote control system in transformer station 110 kV/20 kV Laminor, using IEC 61850. Keywords IEC 61850 • Protection • IED • SBO • GOOSE 29.1 Introduction The protection and automation system of a station depends on the development and availability of microprocessor-based systems. Thus, the equipment from the power station transformation have been evolved from simple electromechanical devices to the digital robust terminals namely intelligent electronic devices (IED-Intelligent Equipment Device) used to perform specific required functions (for example, protection, monitoring and local/remote control). Until now, the specific proprietary communication protocols have been used, developed by each manufacturer in particular manner, requiring complex protocol converters and expensive when IEDs are used from different suppliers. Therefore, there was need to develop an effective protocol for communication between the IEDs, in order to ensure the interoperability. IEC 61850 is a standard protocol for the automation, design of the transformer power stations developed by the International Electrotechnical Commission (IEC), M. Gaiceanu (B) • I.