Electromagnetic compatibility modeling method

A modeling method and electromagnetic compatibility technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems that cannot fully reflect the propagation and formation, it is difficult to achieve universality, and it is not conducive to the development of electromagnetic compatibility technology. Achieve the effect of good application prospect, strong practical value and consistent combination

Inactive Publication Date: 2016-10-26
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0004] The traditional electromagnetic compatibility model is easy to understand, but it cannot fully reflect the process of interference generation, propagation and formation; in addition, for different levels of electromagnetic compatibility analysis, the modeling methods are diverse, and it is difficult to achieve high versatility, which is not conducive to Further Development of Electromagnetic Compatibility Technology

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Embodiment Construction

[0024] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] The first step is to encapsulate the model.

[0026] figure 1 Schematic diagram of the modeling method for EMC consistency, where p 1 ~p N for the port. The use of bidirectional ports to describe the energy exchange window between the device and the outside world can accurately reflect the interaction between the system and the outside world. In the actual system, the ideal input port and output port do not exist. The so-called ideal input (output) port means that the energy will only be transferred from the outside (inside) to the inside (outside). Defined as unidirectional, is an approximation taken for simplicity. However, this approximation may cause important EMI causes to be neglected.

[0027] The second step is to determine the port of the packaged model.

[0028] The output of any port is a function of the input of all ports, thi...

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Abstract

The invention belongs to the field of electromagnetic compatibility, mainly solves the problem of complexity of electromagnetic compatibility analysis modeling and designs a electromagnetic compatibility modeling method which is uniformly packaged and is connected with an outside world through ports. The method comprises the step of: carrying out a uniform description on an interference source, a transmission route and a sensor by use of a multi-port network, wherein the interference source, the transmission route and the sensor are regarded as black boxes; the black boxes are connected with the outside world through the ports; and any window which can enable a system to generate an electromagnetic energy relation with the outside world is defined as one port. Compared with a conventional electromagnetic compatibility modeling method, the method has the characteristics of consistency and easy combination. The electromagnetic compatibility modeling method is high in practicability, can be applied to electromagnetic compatibility analysis of different levels, and has good application prospects in the fields such as electromagnetic interference suppression, electromagnetic compatibility performance analysis and assessment, electromagnetic protection and the like.

Description

technical field [0001] The invention relates to an electromagnetic interference and electromagnetic compatibility analysis method, in particular to an electromagnetic compatibility modeling method, which can be applied to the analysis of electromagnetic compatibility performance at different levels such as system level, equipment level and circuit board level. Background technique [0002] The electromagnetic compatibility model is a mathematical description of the electromagnetic interference mechanism and experimental analysis, and is the basis for the prediction and analysis of electromagnetic compatibility. According to the principle of three elements of electromagnetic interference, the interference model is divided into interference source model, transmission path model and sensor model. [0003] In terms of levels, electromagnetic compatibility analysis can generally be divided into three levels: system level, equipment level, and circuit board level. Because the obje...

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G06F17/50
CPCG06F30/367G06F30/398
Inventor覃宇建周东明李高升卢中昊
OwnerNAT UNIV OF DEFENSE TECH