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Three-phase inductors are often used in filtering applications in three-phase ac power distribution systems. A variety of magnetic architectures can be used to implement these inductors. In this work, two studies are performed comparing four possible architectures — UI-, EI-, Y- and delta-core. The first study focusses on low-frequency steel-core inductors; the second study focuses on a high switching...
Leakage inductance is a critical design attribute of high-frequency transformers. In this paper, a new method to estimate core-type transformer leakage inductance is proposed. The magnetic analysis uses a combination of analytical and numerical analysis. A two-dimensional magnetic analysis using Biot-Savart law and the method of images is introduced. Using the same field analysis, expressions for...
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