Method for analyzing influence of cable parameters of electric drive system on system electromagnetic interference

An electromagnetic interference and impact analysis technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as electromagnetic interference and interference in the system, reduce the number of grids, speed up the simulation speed, and reduce memory requirements Effect

Active Publication Date: 2019-10-25
HUNAN UNIV
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Problems solved by technology

[0002] Electromechanical equipment often includes various complex cable networks and integrated circuits. The analysis method of a single field, line or line usually cannot solve the problem of electromagn

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  • Method for analyzing influence of cable parameters of electric drive system on system electromagnetic interference
  • Method for analyzing influence of cable parameters of electric drive system on system electromagnetic interference
  • Method for analyzing influence of cable parameters of electric drive system on system electromagnetic interference

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Embodiment Construction

[0059] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0060] The present invention provides a method for analyzing the influence of electric drive system cable parameters on system electromagnetic interference. The specific analysis steps are as follows:

[0061] S1. The system consists of a motor 2, a drive controller 1, a three-phase power cable 5, a positive and negative DC bus 6, and a signal line 7. The modeling steps for the electromagnetic interference of the electric drive system are as follows:

[0062] S1.1. Establish ...

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Abstract

The invention discloses a method for analyzing the influence of cable parameters of an electric drive system on system electromagnetic interference, and particularly relates to the technical field ofanalysis of the influence of the cable parameters on the system electromagnetic interference, which comprises the following specific analysis steps: S1, modeling the electromagnetic interference of the electric drive system; S2, establishing a system radiation EMI prediction model; sS3, performing multi-coupling simulation on the system based on a field line; S4, analyzing the influence of power cable parameters on electromagnetic interference; and S5, analyzing the influence of the wiring parameters on the crosstalk of the signal lines. According to the invention, the influence of cable parameters on the electromagnetic interference of the system is analyzed through a field line hybrid simulation method. Current distribution replaces a complex cable harness model in three-dimensional full-wave analysis, grid division of actual cable harnesses is avoided, the number of grids of the whole three-dimensional simulation is greatly reduced, the memory requirement is reduced, and the simulation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of analyzing the influence of cable parameters on system electromagnetic interference, and more specifically, the invention relates to a method for analyzing the influence of cable parameters of an electric drive system on system electromagnetic interference. Background technique [0002] Electromechanical equipment often includes various complex cable networks and integrated circuits. The analysis method of a single field, line or line usually cannot solve the problem of electromagnetic interference in the system. It is necessary to establish an effective field-line-circuit co-simulation method in order to better It meets the requirements of system electromagnetic compatibility analysis. Differential / integral field-line-circuit hybrid simulation analysis, get the electromagnetic field distribution according to the differential or integral equation, use the cable solver to establish the cable equivalent circ...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F2113/16G06F30/20
Inventor 肖培李高升熊艳晔邱永峰刘柱卞立安
Owner HUNAN UNIV
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