持续的分裂式诊断就是电动运动的原因

IF 0.5 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Elektrotechnik und Informationstechnik Pub Date : 2023-10-25 DOI:10.1007/s00502-023-01164-y

Maurizio Zajadatz, Erik Wöhr, Michael Suriyah, Thomas Leibfried

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引用次数: 0

摘要

摘要本文讨论了方波电压下局部放电测量的可能性。重点是低压机器，例如用于电动汽车的机器。介绍了常用的测量方法。在这项工作中，使用高频电流互感器和近场探头作为传感器。本文还讨论了在碳化硅半导体逆变器上产生符合IEC/TS 61934标准的实际陡边测试电压的方法。实验进行了比较所使用的传感器。提供了基于电缆的传感器(HFCT)和天线(近场探头)之间的直接比较。根据IEC/TS 60034-27‑5，打开电机绕组的共振点及其对局部放电测量的意义也进行了研究。结果表明，高频电流互感器和球探头即使在陡峭的电压边缘也能检测到局部放电。由于谐振，具有快速电压边缘的激励在整个系统中导致不可忽略的超调。可以看出，在这些过电压期间会发生局部放电。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Teilentladungsdiagnostik an umrichtergespeisten Antrieben der Elektromobilität

Abstract In this paper, the possibilities of partial discharge measurement at square-wave voltages are discussed. The focus is on low-voltage machines, such as those used in electric vehicles. An insight into common measurement methods is given. In this work, high-frequency current transformers and near-field probes are used as sensors. The generation of a realistic steep-edged test voltage according to IEC/TS 61934 is also discussed and demonstrated on an inverter with silicon carbide semiconductors. Experiments are conducted to compare the sensors used. A direct comparison between cable-based sensors (HFCT) and antennas (near-field probes) is provided. Resonance points to open motor windings according to IEC/TS 60034-27‑5 and their significance for partial discharge measurement are also investigated. The results show that the high-frequency current transformers and the ball probe are able to detect PD even at steep voltage edges. Excitation with a fast voltage edge results in non-negligible overshoots in the overall system due to resonances. It can be shown that the partial discharges occur during these overvoltages.

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来源期刊

Elektrotechnik und Informationstechnik ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

1.20

自引率

0.00%

发文量

期刊介绍： Die Zeitschrift e&i behandelt Themen aus dem Gesamtgebiet der Elektrotechnik und Informationstechnik. Die Bandbreite geht dabei von der Mikroelektronik, über die Informations- und Kommunikationstechnik, die Regelungstechnik und Automatisierung, den elektrischen Maschinenbau, die Energiegewinnung und -versorgung bis hin zum Umweltschutz. Ebenso berichtet die e&i über bedeutende technologische Entwicklungen, richtungsweisende Projekte sowie relevante Fachmessen. Im Journalteil informiert die e&i ihre Leserinnen und Leser über Aktuelles aus der Branche, wie neue Technologien und Produkte, die elektrotechnische Normung, Personalia und Veranstaltungen. Ihre Funktion als Organ des OVE Österreichischer Verband für Elektrotechnik übt die e&i durch laufende Berichterstattung über den Verband, seine Bereiche, Gesellschaften und Mitglieder aus.The journal e&i focuses on topics referring to the wide area of electrical and information engineering. They range from microelectronics to information and communication technology, control engineering and automation, electric drives and machines, energy generation and supply up to the protection of the environment. e&i also reports on significant technological developments, trend-setting projects as well as relevant trade fairs. Additionally to original papers, e&i provides its readers with industry news like new technologies and products, electrotechnical standardization as well as conferences and events. e&i is the official journal of the Austrian Electrotechnical Association (OVE) and thus also informs its readers about the association itself, its areas of operation, its societies as well as its members.