Weight optimization of a dry type core form transformer by using ...

1070 H. Demir / EEST Part A: Energy Science and Research 29 (2012) 1063-1072
Fig. 4. Transformer total weight fitness functions values with PSO.
4. Conclusion
Fig. 5. Transformer efficiency fitness functions values with PSO.
In this study a weight optimization of a 1.5 KVA three phase dry type core form
transformer has been done by using PSO algorithm.
Table 4. The values evaluated of a three phase core type transformer by PSO
compared with classical method
WEIGHT OPTIMIZATION RESULTS OF A DRY TYPE CORE FORM TRANSFORMER
Variables and Other Values Symbol Unit Classical Method Results PSO Method Results
Iron cross section convenience value C cm 2 *joule -1/2 9,48 6,62
Current density value s A/mm 2 2,2 2,76
Window width a mm 58 45,9
Primary winding cross section q1 mm 2 1,79 1,43
Secondary winding cross section q2 mm 2 3,58 2,85
Transformer core diameter D cm 7,5 6,25
Primary winding turn w1 turn 174 248
Secondary winding turn w2 turn 87 124
Primary winding weight Gcu1 kg 2,91 2,94
Secondary winding weight Gcu2 kg 2,16 2,08
The Three legs weight of the Transformer Gfeb kg 9,92 9,848
The yoke weight of the Transformer Gfej kg 15,85 8,67
Total Weight of the Transformer Gtotal kg 30,84 23,5547
Efficiency η % 93 92,3