TY - GEN
T1 - Calculation and Experimental Validation on Leakage Inductance of a Medium Frequency Transformer
AU - Tian, Haonan
AU - Wei, Zhongbao
AU - Vaisambhayana, Sriram
AU - Thevar, Madasamy Palavesha
AU - Tripathi, Anshuman
AU - Kjar, Philip C.
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - Nowadays, medium frequency transformers are widely employed with power electronic converters, offering obvious benefits for modern power system. Rising the switching frequency leads to the need for accurate estimation of the characteristics of a designed transformer. This paper refines the existing analytical frequency-dependent method for accurately calculating leakage inductance in the medium frequency range based on the magnetic field intensity distribution and the stored magnetic energy method. Unlike the previous expressions, the proposed method employs mean turn length of individual layer which makes the calculation more precise. The advantages and impacts of interleaved winding structure to minimize the leakage inductance are also shown by comparing different winding patterns. Transformer prototypes with specifications as 10kW, 500/5000V, 5kHz have been manufactured and tested. The presented equations for inductance calculation are benchmarked to the experimental results on the developed transformer prototypes as well as the finite element analysis (FEM) simulation results.
AB - Nowadays, medium frequency transformers are widely employed with power electronic converters, offering obvious benefits for modern power system. Rising the switching frequency leads to the need for accurate estimation of the characteristics of a designed transformer. This paper refines the existing analytical frequency-dependent method for accurately calculating leakage inductance in the medium frequency range based on the magnetic field intensity distribution and the stored magnetic energy method. Unlike the previous expressions, the proposed method employs mean turn length of individual layer which makes the calculation more precise. The advantages and impacts of interleaved winding structure to minimize the leakage inductance are also shown by comparing different winding patterns. Transformer prototypes with specifications as 10kW, 500/5000V, 5kHz have been manufactured and tested. The presented equations for inductance calculation are benchmarked to the experimental results on the developed transformer prototypes as well as the finite element analysis (FEM) simulation results.
KW - Medium frequency transformer
KW - experimental verification
KW - finite element analysis (FEA)
KW - interleaving winding arrangement
KW - leakage inductance
KW - magnetic field intensity
UR - http://www.scopus.com/inward/record.url?scp=85062863229&partnerID=8YFLogxK
U2 - 10.1109/SPEC.2018.8635637
DO - 10.1109/SPEC.2018.8635637
M3 - Conference contribution
AN - SCOPUS:85062863229
T3 - 2018 IEEE 4th Southern Power Electronics Conference, SPEC 2018
BT - 2018 IEEE 4th Southern Power Electronics Conference, SPEC 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th IEEE Southern Power Electronics Conference, SPEC 2018
Y2 - 10 December 2018 through 13 December 2018
ER -
