Modeling of toroidal transformer

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SUMMARY

This discussion focuses on modeling a toroidal transformer with specific parameters such as permeability and saturation flux density. The user seeks software solutions for simulating a split core toroid clipped onto a power line, emphasizing the need to assess coupling with a one-turn secondary and a primary of arbitrary turns. While some participants suggest that the modeling can be done simply on paper, they acknowledge the complexity introduced by varying materials like nanochrystalline, amorphous, and electrical steel, as well as different geometries and air gaps, particularly at frequencies in the kHz range.

PREREQUISITES
  • Understanding of magnetic properties such as permeability and saturation flux density
  • Familiarity with toroidal transformer design and operation
  • Knowledge of materials used in transformer cores (e.g., nanochrystalline, amorphous, electrical steel)
  • Basic principles of electromagnetic coupling and inductance calculations
NEXT STEPS
  • Research software packages for magnetic design and transformer modeling
  • Learn about the effects of different core materials on transformer performance
  • Explore methods for calculating inductance in toroidal transformers
  • Investigate the impact of air gaps and geometry on coupling at high frequencies
USEFUL FOR

Electrical engineers, power electronics designers, and anyone involved in transformer design and magnetic component modeling will benefit from this discussion.

stephen163
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I want to model a toroidal transformer with a given permeability and saturation flux density. Specifically, I want to model a split core toroid clipped onto a power line, to simulate coupling, so it is really a one turn secondary and a primary of arbitrary turns.

Any software packages out there that are able to do this?
 
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stephen163 said:
I want to model a toroidal transformer with a given permeability and saturation flux density. Specifically, I want to model a split core toroid clipped onto a power line, to simulate coupling, so it is really a one turn secondary and a primary of arbitrary turns.

Any software packages out there that are able to do this?

There are magnetic design packages, but why bother? This is so simple, you can do it on a 4x6 index card in a few minutes. It's little more than an Amprobe (tm). Is there some detail that you specifically want to see?
 
I'm looking at using different types of material (e.g., nanochrystalline, amorphous, electrical steel) with different geometries and air gaps. I also want to assess the coupling at different frequencies (in the kHz range), so it becomes a more involved problem than just working out the inductance of a toroid.
 

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