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METHOD FOR ANALYZING DC SUPERPOSITION CHARACTERISTICS OF INDUCTANCE ELEMENT AND ELECTROMAGNETIC FIELD SIMULATOR
METHOD FOR ANALYZING DC SUPERPOSITION CHARACTERISTICS OF INDUCTANCE ELEMENT AND ELECTROMAGNETIC FIELD SIMULATOR
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机译:电感元件直流叠加特性的分析方法及电磁场仿真器
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摘要
A method for analyzing the DC superposition characteristics of an inductance device using a magnetic field analysis simulator, comprising a first step of determining an initial magnetization curve from initial magnetization to saturation magnetization, and pluralities of minor loops at different operating points, on a toroidal core made of the same magnetic material as that of the inductance device, and obtaining point-list data showing the relation between magnetic flux density or magnetic field strength and incremental permeability from the incremental permeability at each operating point; a second step of determining an operating point at a predetermined direct current on each element obtained by mesh-dividing an analysis model of the inductance device by a magnetic field analysis simulator based on the initial magnetization curve of the core, allocating the incremental permeability to the operating point from the point-list data, and integrating the inductance of each element obtained from the incremental permeability to determine the inductance of the entire inductance device; and a third step of repeating the second step at different direct current levels to determine the DC superposition characteristics.
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