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Research on Electromagnetic Characteristics ofHigh Power Transformer Cabinet(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2019年04期
Page:
19-25
Research Field:
2019全国集成电路可靠性学术会议专栏
Publishing date:

Info

Title:
Research on Electromagnetic Characteristics ofHigh Power Transformer Cabinet
Author(s):
Zhang Jun1; Wang Yongan2; Sun Minghui2; Huang Junshuo2; Zhao Xudong2; Qiu Wei3
(1.Nanjing Special Equipment Safety Supervision and Inspection Research Institute,Nanjing 210019,China)(2.School of Electrical and Automation Engineering,Nanjing Normal University,Nanjing 210023,China)(3.Sumec Complete Equipment and Engineering Co.,Ltd.,Nanjing 210018,China)
Keywords:
high-power transformer cabinet; conducted electromagnetic interference noise; noise theoretical model; noise suppression
PACS:
TM15
DOI:
10.3969/j.issn.1672-1292.2019.04.004
Abstract:
This paper analyzes the problem of conducted electromagnetic interference generated by high-power substations. First,an equivalent model of high-frequency circuits for conducted noise is established. The calculation method of noise current and voltage is explained. Common-mode and differential-mode conducted noise are analyzed and modelled. The model is established to provide the theoretical basis for the subsequent extraction and separation of conducted noise. A scattering parameter method is proposed to extract the noise source impedance,and the conducted noise suppression method is studied. An EMI filter for this circuit is designed,and the suppression effect is experimentally tested. The verification provides a theoretical basis for the actual engineering rectification.

References:

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Last Update: 2019-12-31