System and method for testing low-frequency radiation immunity of power line based on crosstalk injection

A technology of radiation immunity and test system, applied in the field of low-frequency radiation immunity test system of power line based on crosstalk injection, can solve the problems of complex time-consuming, high cost, low radiation efficiency of low-frequency antenna, etc., and achieve stable power grid. The effect of impedance measurement, high coupling efficiency and cost reduction

Active Publication Date: 2021-12-10
XI AN JIAOTONG UNIV
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Problems solved by technology

[0004] In order to overcome the shortcomings of the above-mentioned prior art, the object of the present invention is to provide a power line low-frequency radiation immunity test system and method based on crosstalk injection, aiming at s

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  • System and method for testing low-frequency radiation immunity of power line based on crosstalk injection
  • System and method for testing low-frequency radiation immunity of power line based on crosstalk injection
  • System and method for testing low-frequency radiation immunity of power line based on crosstalk injection

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Embodiment Construction

[0040] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0041] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a system and a method for testing low-frequency radiation immunity of a power line based on crosstalk injection, belongs to the field of electromagnetic compatibility testing methods of electrical and electronic equipment, and aims to solve the problems that a radiation immunity testing method based on a darkroom irradiation method is complex, time-consuming and high in cost, and the radiation efficiency of a low-frequency-band antenna below 1GHz is low. According to the invention, the number of radio frequency interference sources required by a crosstalk injection method is reduced from two to one through a line impedance stabilization network, and the problem of complexity of dual-source cooperative regulation and control is avoided. The radiation immunity test system provided by the invention adopts a near-field crosstalk method, the coupling efficiency is high, expensive equipment such as a microwave anechoic chamber and a broadband radiation antenna is omitted, the time cost and the equipment cost required by the radiation immunity test are saved, and the radiation immunity test system has a better application prospect in the field of electromagnetic compatibility test methods of electrical and electronic equipment.

Description

technical field [0001] The invention belongs to the field of electromagnetic compatibility (EMC) testing methods of electrical and electronic equipment, and relates to a power line low-frequency radiation immunity testing system and method based on crosstalk injection. Background technique [0002] Radiation immunity is a basic electromagnetic compatibility (EMC) test item to test the resistance of electrical and electronic equipment to a certain intensity of radiated electromagnetic interference. The anechoic chamber irradiation method is the most widely used radiation immunity test method. Its principle is that in the anechoic chamber space, a broadband radiation antenna is used to generate a certain intensity of electromagnetic radiation interference, and the equipment under test, which is constantly rotating on the turntable, is excited one by one. (EUT), by observing whether the EUT has interference, restart, downtime and other effects, the immunity of the equipment is ...

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Application Information

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IPC IPC(8): G01R31/00
CPCG01R31/001
Inventor 梁涛谢彦召
Owner XI AN JIAOTONG UNIV
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