AC Ground Fault Location Method for Variable Speed Drives Using Lissajous Curves

IF 4.2 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Industry Applications Pub Date : 2024-08-21 DOI:10.1109/TIA.2024.3446955

José Manuel Guerrero;Daniel Serrano-Jiménez;Patxi Madina;Vanesa Valiño;Gustavo Navarro;Carlos A. Platero

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Abstract

The increasing presence of electric drives demands the development of new detection and diagnosis methods of electrical faults. In particular, ground faults are the most common type of faults in electrical systems. Locating these faults is not trivial, as they depend not only on the position, but also on its fault resistance. This paper proposes a new method to detect and locate ground faults in the AC side of an electric drive. The method is based on the ground connection of a high value resistance between the midpoint of the DC bus and ground. By means of the study of the relations between the DC voltage on this resistance and the phase-to-neutral voltages in the AC side of the drive, the location of the fault can be determined. This method has several advantages, as it does not require to know the phase impedance or to estimate an initial ground resistance. The method has been validated by means of computer simulations and in an experimental test bench using a 140-kW power converter obtaining satisfactory results.

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利用利萨如曲线的变速驱动器交流接地故障定位方法

随着电力驱动的日益普及，需要开发新的电气故障检测和诊断方法。特别是，接地故障是电气系统中最常见的故障类型。定位这些故障并非易事，因为它们不仅取决于位置，还取决于故障电阻。本文提出了一种检测和定位电力驱动交流侧接地故障的新方法。该方法基于直流母线中点与地之间的高阻值接地连接。通过研究该电阻上的直流电压与驱动器交流侧相间中性点电压之间的关系，可以确定故障位置。这种方法有几个优点，因为它不需要知道相位阻抗或估计初始接地电阻。该方法已通过计算机模拟和使用 140 千瓦功率变流器的实验测试台进行了验证，并取得了令人满意的结果。

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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来源期刊

IEEE Transactions on Industry Applications 工程技术-工程：电子与电气

CiteScore

9.90

自引率

9.10%

发文量

747

审稿时长

3.3 months

期刊介绍： The scope of the IEEE Transactions on Industry Applications includes all scope items of the IEEE Industry Applications Society, that is, the advancement of the theory and practice of electrical and electronic engineering in the development, design, manufacture, and application of electrical systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; industry leadership in energy conservation and environmental, health, and safety issues; the creation of voluntary engineering standards and recommended practices; and the professional development of its membership.