DESIGN CONCEPT OF POWER SYSTEM INTELLIGENT RELAY PROTECTION
Approaches to the creation of intelligent protection relay with regard to the interpretation of the term “intelligent relay protection” are considering. Intellectualization criteria, in particular, the use of adaptive algorithms are presenting. The development of the microprocessor protection devices intelligence through the use of their ability to “self-tuning” to adapt to changes in modes of operation and increase the reliability of detection of short-circuit in power system, as well as benefits the information transfer and synchronization, the introduction of IEC 61850 is analysing. Recommendations on the application of mathematical methods of signal processing, in particular, wavelet transform and mathematical morphology in the process of creating intelligent relay protection are giving. The efficiency of wave methods in the development of created protection device algorithms allows not to depend on changing the electric network operation modes for intelligent relay protection.