The invention discloses an eElectromagnetic compatibility modeling method and device for an object

Abstract

The invention provides an electromagnetic compatibility modeling method and device for an object. The method comprises the following steps: decomposing a to-be-modeled object into an electrical connection and P component units; C; converting each component unit from a body structure to a surface structure consisting of a thickness-free surface, wherein the converted component unit is used as a target component unit; D; determining at least one target unit plane corresponding to each target component unit, and constructing a component model of each component through the at least one target unitplane corresponding to each target component unit; C; constructing an equivalent circuit model of the electrical connection as a model of the electrical connection; A; and the component models of allthe component units and the electrically connected model are combined, and the combined model serves as an electromagnetic compatibility simulation model of the to-be-modeled object. According to theelectromagnetic compatibility modeling method and device for the object, t, the accuracy of simulation calculation can be ensured, t, the simulation calculation efficiency can be improved, t, the modeling process is easy to execute, operability is high, and the electromagnetic compatibility modeling method and device are suitable for practical engineering application.

Description

technical field [0001] The present invention relates to the technical field of electromagnetic compatibility, and more specifically, to an object electromagnetic compatibility modeling method and device. Background technique [0002] The use of modeling and simulation for EMC analysis is the development trend of EMC design for electronic and electrical systems. EMC modeling and simulation can obtain quantitative analysis results, evaluate EMC risks in the early stage of design, and locate the causes of risks. Therefore, it is of great significance in engineering development. [0003] The implementation of EMC modeling and simulation includes two aspects: model and algorithm. At present, the algorithms of electromagnetic compatibility simulation are relatively mature, such as the finite integration technique (Finite Integration Technique, FIT) in the time domain algorithm, the finite difference in time domain (Finite Difference in Time Domain, FDTD), and the moment method in...

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Problems solved by technology

[0004] However, how to establish the structure of the electronic and electrical system as a model with accurate results and engineering feasibility has always been a difficult point in the engineering practice of EMC modeling and simulation, and it has become an important issue in the engineering application of EMC modeling and simulation. limiting factors

It is understandable that actual products often have fine structures, especially for large and complex structures such as automobiles, airplanes, and locomotives. It is more difficult to strike a balance between calculation accuracy and accuracy in EMC modeling. At present, there is no reasonable and effective EMC modeling method

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