C. T-B Methods for Transformer Design Optimization
In practical design, the constraints limiting the power
density of the transformer are often the saturation flux
density Bsat and the maximum allowed temperature rise Trise.
Thus one more design optimization method is developed in
this paper based on the inequality constraints of flux density
and temperature rise, named as T-B Method in short.
According to (9) and (10) and TABLE III, the flux
density can be summarized as (15) for both single and threephase
transformers.