TITLE:
Effect of Metal Oxide Arrester on Chaotic Behavior of Power Transformers
AUTHORS:
Ataollah Abbasi, Mehrdad Rostami, Seyyed Hamid Fathi, Hamid R. Abbasi, Hamid Abdollahi
KEYWORDS:
Chaotic Ferroresonance, MOV, Nonlinear Core Loss, Bifurcation Diagram, Phase Plane Diagram
JOURNAL NAME:
Energy and Power Engineering,
Vol.2 No.4,
November
26,
2010
ABSTRACT: This paper investigates the Effect of Metal Oxide Arrester (MOV) on the Chaotic Behaviour of power transformers considering nonlinear model for core loss of transformer. The paper contains two parts. In part (1): effect of nonlinear core on the onset of chaotic ferroresonance in a power transformer is evaluated. The core loss is modeled by a third order power series in voltage. in part (2): Effect of Metal Oxide Arrester(MOV) on results in part (1) will be studied. The results reveal that the presence of the arrester has a mitigating effect on ferroresonant chaotic overvoltages. resulted bifurcation diagrams and phase plane diagrams have also been delivered.