Magnetization Research in Time-Domain Magnetic-Circuit Coupled Computation for DC-Biased Transformer

Abstract:

By revised method of fitting magnetization curve in segment, technique of simulating the nonlinear characteristic of laminated core is enhanced. The DC-bias problem is computed based on the time-domain magnetic-circuit coupled model while considering the saturated and unsaturated magnetizing characteristics of the laminated core. Experiments are designed to verify the validity of the proposed method, and then the volt-ampere feature of unsaturated magnetization is learned. Consequently, the results indicate that the improved method is more accurate and efficient by contrast.

• Periodical: Applied Mechanics and Materials (Volumes 347-350)
• Pages: 1393-1397
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.347-350.1393
• Online since: August 2013
• Authors: Guo Wei Cai, Yi Gong Wang, Yang Jin Jiang, Tie Feng Li
• Keywords: Finite Element Method (FEM), Magnetizing Characteristic, Time-Domain Magnetic-Circuit Cupled Method

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