Development of circuit design method for suppressing the common-mode noise of power converter

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420254
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: National Maritime Research Institute
• Principal Investigator: SEKIGUCHI Hidenori 国立研究開発法人 海上技術安全研究所, その他部局等, 上席研究員 (80415843)
• Co-Investigator(Kenkyū-buntansha): FUNAKI Tsuyoshi 大阪大学, 大学院工学研究科, 教授 (20263220)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 電力変換装置 / コモンモード電磁妨害波 / 電流プローブ

Outline of Final Research Achievements

This study showed qualitatively the generating mechanism of common-mode noise of power converter, from the relationship between the switching current, the degree of impedance balance between outward and homeward lines and the magnitude of common-mode noise. Additionally, in order to measure accurately the wide-band common-mode noise using a current probe, a high reliability and reproducibility measurement method for the transfer impedance of the current probe was developed by means of a VNA (vector network analyzer) and a calibration fixture. The paper that described the measurement method was published in the IEEE Transactions on Electromagnetic Compatibility.

Free Research Field

環境電磁工学