Ferroresonance analysis using 3D bifurcation diagrams

Nowadays the term ferroresonance is firmly established in the power system engineer's vocabulary as one of the most destructive transient phenomena, which may cause failures in power equipment such transformers, cables, or arresters. Its complex non-linear behavior makes difficult its characterization. This work links EMTP and MATLAB to presents some techniques for the assessment of ferroresonance behavior. The aim is to visualize 2D bifurcation diagrams which can be used for performing a deep sensitive analysis, and 3D bifurcation diagrams to predict the phenomenon and assist finding safety zones for power system parameter design.