Leakage inductance calculation for planar transformers with a magnetic shunt

Jun Zhang; Ziwei Ouyang; Maeve C. Duffy; Michael A.E. Andersen; William Gerard Hurley

doi:10.1109/TIA.2014.2322140

Leakage inductance calculation for planar transformers with a magnetic shunt

Jun Zhang, Ziwei Ouyang, Maeve C. Duffy, Michael A.E. Andersen, William Gerard Hurley

Electrical & Electronic Engineering

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

111 Citations (Scopus)

Abstract

The magnetic shunt is generally inserted in a planar transformer to increase the leakage inductance, which can be utilized as the series inductor in resonant circuits such as the LLC resonant converter. This paper presents a calculation methodology for the leakage inductance of the transformer with a magnetic shunt by means of the stored magnetic energy in the primary and secondary sides of the transformer using the magnetomotive force (MMF) variation method, as well as the stored energy in the shunt based on the reluctance model. The detailed calculation method is described. Both the finite-element analysis simulation and the experimental results have proven the validity of the proposed calculation method for leakage inductance.

Original language	English
Article number	6810816
Pages (from-to)	4107-4112
Number of pages	6
Journal	IEEE Transactions on Industry Applications
Volume	50
Issue number	6
DOIs	https://doi.org/10.1109/TIA.2014.2322140
Publication status	Published - 1 Nov 2014

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Authors
Zhang, J,Ouyang, ZW,Duffy, MC,Andersen, MAE,Hurley, WG

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10.1109/TIA.2014.2322140

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title = "Leakage inductance calculation for planar transformers with a magnetic shunt",

abstract = "The magnetic shunt is generally inserted in a planar transformer to increase the leakage inductance, which can be utilized as the series inductor in resonant circuits such as the LLC resonant converter. This paper presents a calculation methodology for the leakage inductance of the transformer with a magnetic shunt by means of the stored magnetic energy in the primary and secondary sides of the transformer using the magnetomotive force (MMF) variation method, as well as the stored energy in the shunt based on the reluctance model. The detailed calculation method is described. Both the finite-element analysis simulation and the experimental results have proven the validity of the proposed calculation method for leakage inductance.",

author = "Jun Zhang and Ziwei Ouyang and Duffy, \{Maeve C.\} and Andersen, \{Michael A.E.\} and Hurley, \{William Gerard\}",

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AU - Zhang, Jun

AU - Ouyang, Ziwei

AU - Duffy, Maeve C.

AU - Andersen, Michael A.E.

AU - Hurley, William Gerard

PY - 2014/11/1

Y1 - 2014/11/1

N2 - The magnetic shunt is generally inserted in a planar transformer to increase the leakage inductance, which can be utilized as the series inductor in resonant circuits such as the LLC resonant converter. This paper presents a calculation methodology for the leakage inductance of the transformer with a magnetic shunt by means of the stored magnetic energy in the primary and secondary sides of the transformer using the magnetomotive force (MMF) variation method, as well as the stored energy in the shunt based on the reluctance model. The detailed calculation method is described. Both the finite-element analysis simulation and the experimental results have proven the validity of the proposed calculation method for leakage inductance.

AB - The magnetic shunt is generally inserted in a planar transformer to increase the leakage inductance, which can be utilized as the series inductor in resonant circuits such as the LLC resonant converter. This paper presents a calculation methodology for the leakage inductance of the transformer with a magnetic shunt by means of the stored magnetic energy in the primary and secondary sides of the transformer using the magnetomotive force (MMF) variation method, as well as the stored energy in the shunt based on the reluctance model. The detailed calculation method is described. Both the finite-element analysis simulation and the experimental results have proven the validity of the proposed calculation method for leakage inductance.

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ER -

Leakage inductance calculation for planar transformers with a magnetic shunt

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