Title :
Hysterisis Modeling by Inspection
Author :
Uriarte, Fabian M.
Author_Institution :
Comput. Eng. Dept. at Virginia Tech, Power Syst. Group of the Electr., Blacksburg, VA
Abstract :
By looking at the hysteresis loop of a core, its nonlinear magnetizing branch can be modeled by visual inspection. Three constants on the hysteresis loop reveal enough information about the core loss and non-linear inductance that power measurements and data-pairs can be avoided. An experimental hysteresis loop is taken from a CT and its model put together by visual inspection. The visual method presented is simulated and verified against an experimental hysterisis loop using SimPowerSystems as the circuit simulator.
Keywords :
current transformers; inductance; inspection; losses; transformer cores; CT; SimPowerSystems circuit simulator; core losses; hysterisis loop; hysterisis modeling; nonlinear inductance; nonlinear magnetizing branch; visual inspection; Circuit simulation; Inspection; Magnetic cores; Magnetic flux; Magnetic materials; Nonlinear equations; Predictive models; Saturation magnetization; Steady-state; Transformer cores; core; current; equation; hysterisis; loop; magnetizing; model; saturable; simpower; simulink; transformer; visual;
Conference_Titel :
Power Symposium, 2006. NAPS 2006. 38th North American
Conference_Location :
Carbondale, IL
Print_ISBN :
1-4244-0227-1
Electronic_ISBN :
1-4244-0228-X
DOI :
10.1109/NAPS.2006.360143
