Repetitive Controllable Impulse Shapes for Versatile Motor Insulation System Diagnostics

IF 3.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Dielectrics and Electrical Insulation Pub Date : 2026-10-01 Epub Date: 2026-03-12 DOI:10.1109/TDEI.2026.3692768

T. J. Å. Hammarström;S. M. Gubanski

{"title":"Repetitive Controllable Impulse Shapes for Versatile Motor Insulation System Diagnostics","authors":"T. J. Å. Hammarström;S. M. Gubanski","doi":"10.1109/TDEI.2026.3692768","DOIUrl":null,"url":null,"abstract":"This article demonstrates a new approach to investigating partial discharge (PD) behavior in high-voltage motor insulation systems. The method utilizes controllable power electronic sources for creating a versatile voltage wave shape that resembles an oscillating impulse, often found in the turn-to-turn insulation of electric motor windings. Voltage flank amplitudes and rise times of the wave shape can individually be controlled for investigating their impact. The method is usable in the machine design process as well as suitable to simulate the impact of multilevel pulsewidth-modulated (PWM) solutions.The influence of the flank width and impulse duration on partial discharge inception voltage (PDIV) is revealed at varying pulse sequences for a twisted pair test object. In addition, PD appearance under narrow overshoot pulses is investigated, showing that sufficiently short pulses may not introduce discharges, which becomes important when high-frequency applications act on the insulation. If, alternatively, such short pulses are sufficiently large, a strong PD activity takes place. The types of PD activity revealed in this work are suitable for assessing their impact on insulation degradation by means of artificial intelligence (AI)-based diagnostic techniques.","PeriodicalId":13247,"journal":{"name":"IEEE Transactions on Dielectrics and Electrical Insulation","volume":"33 5","pages":"3987-3995"},"PeriodicalIF":3.3000,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Dielectrics and Electrical Insulation","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/11516248/","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/3/12 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

This article demonstrates a new approach to investigating partial discharge (PD) behavior in high-voltage motor insulation systems. The method utilizes controllable power electronic sources for creating a versatile voltage wave shape that resembles an oscillating impulse, often found in the turn-to-turn insulation of electric motor windings. Voltage flank amplitudes and rise times of the wave shape can individually be controlled for investigating their impact. The method is usable in the machine design process as well as suitable to simulate the impact of multilevel pulsewidth-modulated (PWM) solutions.The influence of the flank width and impulse duration on partial discharge inception voltage (PDIV) is revealed at varying pulse sequences for a twisted pair test object. In addition, PD appearance under narrow overshoot pulses is investigated, showing that sufficiently short pulses may not introduce discharges, which becomes important when high-frequency applications act on the insulation. If, alternatively, such short pulses are sufficiently large, a strong PD activity takes place. The types of PD activity revealed in this work are suitable for assessing their impact on insulation degradation by means of artificial intelligence (AI)-based diagnostic techniques.

查看原文本刊更多论文

用于多功能电机绝缘系统诊断的重复可控脉冲形状

本文提出了一种研究高压电机绝缘系统局部放电行为的新方法。该方法利用可控的电力电子源来产生类似于振荡脉冲的通用电压波形，通常在电动机绕组的匝间绝缘中发现。电压侧幅值和波形的上升时间可以单独控制，以研究它们的影响。该方法可用于机械设计过程，也适用于模拟多电平脉宽调制（PWM）方案的影响。研究了双绞线试验对象在不同脉冲序列下，侧面宽度和脉冲持续时间对局部放电起始电压的影响。此外，研究了窄超调脉冲下的局部放电现象，表明足够短的脉冲可能不会引入放电，这在高频应用于绝缘时变得很重要。或者，如果这种短脉冲足够大，就会发生强烈的PD活动。本研究揭示的PD活动类型适合通过基于人工智能（AI）的诊断技术来评估它们对绝缘退化的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

IEEE Transactions on Dielectrics and Electrical Insulation 工程技术-工程：电子与电气

CiteScore

6.00

自引率

22.60%

发文量

309

审稿时长

5.2 months

期刊介绍： Topics that are concerned with dielectric phenomena and measurements, with development and characterization of gaseous, vacuum, liquid and solid electrical insulating materials and systems; and with utilization of these materials in circuits and systems under condition of use.