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首页> 外文会议>2019 72nd Conference for Protective Relay Engineers >The Use of Symmetrical Components in Electrical Protection
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The Use of Symmetrical Components in Electrical Protection

机译：对称组件在电气保护中的使用

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摘要

In some situations, the symmetrical components of voltage and current are more sensitive to electric faults compared to their phase-domain counterparts. For this reason, several protection relays operate on symmetrical components and many protection engineers continue to develop protection algorithms that rely on these quantities. This paper reviews the literature on the use of symmetrical components in electrical protection and sorts it in categories covering line protection, generator/motor protection, transformer protection and protection of distribution networks and microgrids. The review shows that symmetrical components are used by over-current/-voltage elements, distance relaying, directional algorithms, differential schemes, adaptive protection and protection algorithms based on relationships of symmetrical components. This paper also presents, in short, the theoretical background of symmetrical components and their derivation from the phase-domain quantities.
机译：在某些情况下，电压和电流的对称分量与其相域对应物相比对电气故障更为敏感。因此，几个保护继电器在对称组件上运行，许多保护工程师继续开发依赖于这些数量的保护算法。本文回顾了有关在电气保护中使用对称组件的文献，并将其分类为线路保护，发电机/电动机保护，变压器保护以及配电网络和微电网保护。审查表明，过电流/电压元件，距离继电器，方向算法，差分方案，自适应保护和基于对称组件关系的保护算法都使用对称组件。简而言之，本文还介绍了对称分量的理论背景及其从相域数量推导的结果。

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