Adaptive Strategies in Power Systems Protection Using Artificial Intelligence Techniques

The present generation of digital protection devices allows the implementation of adaptive strategies for power system protection. This paper presents an overview of the use of artificial intelligence (AI) techniques to improve some aspects of power systems protection, especially adaptive protection. Each technique is briefly described and in the sequence some applications of this technique to the problem being discussed are presented. The study focuses on the following techniques: multi-agent systems, artificial neural networks, genetic algorithms, expert systems and fuzzy logic. This review shows that with the technology available today, some old unsolved issues of power system protection can now be solved and well-known protection philosophies can become more effective and reliable.