Method and device for evaluating influence of electromagnetic interference on cable, medium and equipment

Abstract

The invention discloses a method and device for evaluating the influence of electromagnetic interference on a cable, a medium and equipment. According to the method and the device, the waveforms of various common-mode electromagnetic interferences are accurately obtained, the three-dimensional model is constructed by combining materials and physical attributes of different types of cables, and the interference waveforms are coupled into the model by utilizing the preset transformer model, so that the simulation cable model can be created. And then, by executing a preset transient simulation task, time domain current values of various cables under different common-mode interferences can be output according to a preset interference source and a circuit probe. The time domain current values are key data for evaluating the influence of electromagnetic interference on the cable and can quantify the sensitivity and response of different cable types to the electromagnetic interference, so that a scientific basis is provided for cable design and optimization, and the electromagnetic compatibility of the cable is improved.

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