Analisis Pengaruh Desain, Tipe, dan Konfigurasi Belitan terhadap Rugi-Rugi Belitan pada Trafo Frekuensi Tinggi Berbasis Finite Element Method
Bernardino Swastaka Efi, Naufal Hilmi Fauzan, S.Si., M.T. ; Ir. Bambang Sugiyantoro, M.T.
2024 | Skripsi | TEKNIK ELEKTRO
Perbedaan rentang
frekuensi kerja antara trafo konvensional (50/60 Hz) dan high frequency
transformer (HFT) membuat karakteristik kedua trafo berbeda. Peningkatan
frekuensi operasi pada HFT berimplikasi pada penurunan dimensi, peningkatan
kerapatan daya, dan penghematan biaya produksi. Namun, hal ini juga
berkonsekuensi pada meningkatnya rugi-rugi trafo, khususnya rugi-rugi belitan.
Kenaikan rugi-rugi belitan terjadi karena efek frekuensi tinggi seperti skin
effect dan proximity effect. Nilai rugi-rugi belitan dapat
dipengaruhi beberapa faktor, seperti desain, tipe, dan konfigurasi belitan.
Penelitian ini bertujuan untuk mengetahui pengaruh perubahan ketiga faktor
tersebut pada nilai rugi-rugi belitan pada HFT. Metode yang digunakan adalah
perhitungan parameter HFT dan rugi-rugi belitan, pembuatan desain HFT, dan
simulasi rugi-rugi belitan pada Ansys Electronic Desktop. Hasil
penelitian menunjukkan bahwa penggunaan foil conductor lebih disarankan
dibandingkan dengan round conductor karena foil conductor memiliki
rugi-rugi belitan yang lebih baik dibandingkan round conductor. Metode
"Hurley" terbukti memiliki nilai rugi-rugi belitan yang lebih baik
dari pada metode "Ned Mohan" sebesar 20-27%. Pada foil conductor,
konfigurasi belitan apapun dapat digunakan karena memiliki nilai rugi-rugi
belitan yang tidak jauh berbeda. Akan tetapi, pada round conductor
disarankan menggunakan konfigurasi interleaved karena dapat menurunkan
rugi-rugi belitan.
The difference in
working frequency range between conventional transformers (50/60 Hz) and high
frequency transformers (HFT) makes the characteristics of the two transformers
different. The increase in operating frequency in HFT has implications for decreased
dimensions, increased power density, and production cost savings. However, this
also has the consequence of increasing transformer losses, especially winding
losses. The increase in winding losses occurs due to high frequency effects
such as skin effect and proximity effect. The value of winding losses can be
influenced by several factors, such as design, type, and winding configuration.
This study aims to determine the effect of changes in these three factors on
the value of winding losses in HFT. The methods used are the calculation of HFT
parameters and winding losses, the creation of HFT designs, and simulation of
winding losses on Ansys Electronic Desktop. The results show that the use of
foil conductor is more recommended than round conductor because foil conductor
has better winding losses than round conductor. The "Hurley" method
is proven to have a better winding loss value than the "Ned Mohan"
method by 20-27%. In foil conductor, any winding configuration can be used
because it has a winding loss value that is not much different. However, the
round conductor is recommended to use the interleaved configuration because it
can reduce the winding losses.
Kata Kunci : HFT, Winding loss, Skin effect, Proximity effect, Ansys Electronic Desktop