Effect of Circuit Breaker Shunt Resistance on Chaotic Ferroresonance in Voltage Transformer

Advances in Electrical and Computer Engineering

RADMANESH, H. ; ROSTAMI, M..

关键词: circuit breakers shunt resistance;    chaos;    bifurcation;    ferroresonance;    voltage transformers;   

DOI  :  10.4316/AECE.2010.03012

学科分类：计算机科学（综合）

来源: Universitatea "Stefan cel Mare" din Suceava

【 摘 要 】

Ferroresonance or nonlinear resonance is a complex electrical phenomenon, which may cause over voltages and over currents in the electrical power system which endangers the system reliability and continuous safe operating. This paper studies the effect of circuit breaker shunt resistance on the control of chaotic ferroresonance in a voltage transformer. It is expected that this resistance generally can cause ferroresonance dropout. For confirmation this aspect Simulation has been done on a one phase voltage transformer rated 100VA, 275kV. The magnetization characteristic of the transformer is modeled by a single-value two-term polynomial with q=7. The simulation results reveal that considering the shunt resistance on the circuit breaker, exhibits a great mitigating effect on ferroresonance over voltages. Significant effect on the onset of chaos, the range of parameter values that may lead to chaos along with ferroresonance voltages has been obtained and presented.

【 授权许可】

Unknown