A Condition-Monitoring Method of DC-Link Capacitors Used in a High-Power Three-Phase PWM Inverter with an Evaluation Circuit

カテゴリ: 論文誌(論文単位)

グループ名: 【D】産業応用部門（英文）

発行日: 2019/05/01

タイトル(英語): A Condition-Monitoring Method of DC-Link Capacitors Used in a High-Power Three-Phase PWM Inverter with an Evaluation Circuit

著者名: Kazunori Hasegawa (Kyushu Institute of Technology), Shin-ichi Nishizawa (Kyushu University), Ichiro Omura (Kyushu Institute of Technology)

著者名(英語): Kazunori Hasegawa (Kyushu Institute of Technology), Shin-ichi Nishizawa (Kyushu University), Ichiro Omura (Kyushu Institute of Technology)

キーワード: DC-link capacitors，three-phase inverters，condition monitoring，equivalent series resistance，capacitance

要約(英語): This paper presents a condition-monitoring method of dc-link capacitors used in a high-power three-phase PWM inverter with an evaluation circuit intended for ageing tests. Although its power rating is 1/25 of the inverter, the evaluation circuit provides the equivalent ripple current waveform and dc-bias voltage to the high-power inverter. The monitoring method independently extracts the capacitance and ESR of the dc-link capacitor, where the fast Fourier transform is introduced to the ripple current waveform and the dc-link voltage of the evaluation circuit. Experimental results verify that the monitoring method obtains both the ESR and capacitance changes of a capacitor under test.

本誌: IEEJ Journal of Industry Applications Vol.8 No.3 （2019） Special Issue on “IPEC-Niigata 2018”

本誌掲載ページ: 480-487 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejjia/8/3/8_480/_article/-char/ja/