Zhurnal Radioelektroniki - Journal of Radio Electronics. eISSN 1684-1719. 2023. №5

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DOI: https://doi.org/10.30898/1684-1719.2023.5.8




Z.M. Gizatullin, R.M. Gizatullin, R.R. Mubarakov


Kazan National Research Technical University named after A.N. Tupolev-KAI,

10 Karl Marx Str., Kazan, 420111, Russia


The paper was received March 15, 2023


Abstract. Electricity converters are widely used as part of technical means. They operate at high frequencies and have improved weight and dimensions. This exacerbates the problem of intrasystem electromagnetic compatibility of technical means. In this case, often, the problem of electromagnetic compatibility is manifested only in conditions of complete installation and operation. Therefore, the purpose of this work is to develop a methodology and tools for the study of conducted interference from power converters in operating conditions. A capacitive sensor has been created to measure conductive interference in the housing of the power converter and in the conductive elements of the design of technical facilities. Examples of the study of conducted interference from a pulsed power supply in the time and frequency domains are given. A circuit model for calculating the real parameters of conducted interference is proposed. An example of calculation is given. The noise amplitude reaches several tenths of a volt. A significant part of the interference energy is in the range up to 10 MHz. The dependences of the decrease in the amplitude of conducted interference on the distance to the source are presented. Interference without significant attenuation can propagate up to several meters through conductive structural elements. In this case, with increasing distance, voltage fluctuations at the leading and trailing edges of the pulses increase. The methodology and tools can be used to study possible propagation paths and parameters of conducted interference from different sources in the area of their operation. They can also be used to evaluate the effectiveness of interference mitigation measures.

Key words: electricity converter, switching power supply, conducted interference, electromagnetic compatibility, technique, measurement, capacitive sensor, circuit model.

Financing: The research was supported by the grant from the Russian Science Foundation 22-29-20092, https://rscf.ru/project/22-29-20092/ and the Cabinet of Ministers of the Republic of Tatarstan.

Corresponding author: Gizatullin Zinnur Marselevich, zmgizatullin@kai.ru


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For citation:

Gizatullin Z.M., Gizatullin R.M., Mubarakov R.R. Technique and tools for investigation of conductive interference from electricity converters under operating conditions. Zhurnal radioelektroniki [Journal of Radio Electronics] [online]. 2023. №5. https://doi.org/10.30898/1684-1719.2023.5.8 (In Russian)