The Research On Adaptive Distance Protection Based On Multi-agent System

Based on analyzing all kinds of factors affecting distance protection in theory, this paper analyzes the effect of these factors concretely by simulation. Then a new-style adaptive distance protection principle is proposed. It improves the shortcoming of traditional relay protection. The multi-agent theory is applied in the adaptive distance protection, and the architecture of MAS is built in it. Through the cooperation among agents, the adaptive distance protection can adapt protection to various changes of power system automatically and intelligently. The problem of realizing adaptive distance protection can be solved by using agent. More useful information can be gained by using mobile agent. The cooperation between back-up protection and primary protection can be achieved. And also the hidden failures of power system can be supervised and controlled.