Transmission line pilot relaying scheme based on superimposed DC decaying component energy

IF 4.2 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Electric Power Systems Research Pub Date : 2025-06-23 DOI:10.1016/j.epsr.2025.111928

Sandeep Biswal

引用次数: 0

Abstract

To ensure the security and selectivity of power system transmission line protection relays, a number of components oversee them. These components, fault detection, distance, directional, and differential protection are extremely important for protection. This research suggests a novel unit protection approach based on DC component information to address such an issue. The notch filtering technique is used to estimate the DC components at the beginning of the suggested algorithm. Next, the Hilbert operator, which acts as an index for the suggested unit protection logic, is used to quantify the energy of the differential DC component. For validation, many test systems with a range of worst-case scenarios are fitted and modeled using EMTDC/PSCAD. The results obtained from simulating numerous disturbances demonstrate the effectiveness of the suggested approach.

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基于直流衰减分量能量叠加的输电线路导频继电方案

为了保证电力系统输电线路保护继电器的安全性和选择性，有许多元件对其进行监督。这些组件，故障检测，距离，方向和差动保护是极其重要的保护。本研究提出一种基于直流元件信息的新型单元保护方法来解决这一问题。在算法开始时，采用陷波滤波技术对直流分量进行估计。接下来，希尔伯特算子作为建议的单元保护逻辑的指标，用于量化差分直流分量的能量。为了验证，使用EMTDC/PSCAD对许多具有一系列最坏情况的测试系统进行了拟合和建模。仿真结果表明了该方法的有效性。

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

Electric Power Systems Research 工程技术-工程：电子与电气

CiteScore

7.50

自引率

17.90%

发文量

963

审稿时长

3.8 months

期刊介绍： Electric Power Systems Research is an international medium for the publication of original papers concerned with the generation, transmission, distribution and utilization of electrical energy. The journal aims at presenting important results of work in this field, whether in the form of applied research, development of new procedures or components, orginal application of existing knowledge or new designapproaches. The scope of Electric Power Systems Research is broad, encompassing all aspects of electric power systems. The following list of topics is not intended to be exhaustive, but rather to indicate topics that fall within the journal purview. • Generation techniques ranging from advances in conventional electromechanical methods, through nuclear power generation, to renewable energy generation. • Transmission, spanning the broad area from UHV (ac and dc) to network operation and protection, line routing and design. • Substation work: equipment design, protection and control systems. • Distribution techniques, equipment development, and smart grids. • The utilization area from energy efficiency to distributed load levelling techniques. • Systems studies including control techniques, planning, optimization methods, stability, security assessment and insulation coordination.