基于故障元件原理的有源配电网络混合保护方案

IF 1.6 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Rui-feng Zhao, Biao-long Su, Zhi-wen Yu, Kai-lin Wang, Jian-gang Lu
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引用次数: 0

摘要

将分布式发电 (DG) 集成到有源配电网络中对传统的保护方案提出了巨大挑战,原因是电力流向发生了改变,并对短路故障电流产生了影响。本文提出了一种基于故障电流分量的新型多层保护方案,以应对这些挑战。该方案结合了先导保护、DG 主动孤岛保护和传统的三级过流保护,充分利用了正序和负序电流分量的幅值比和相位差。该方案引入了补偿机制来调整保护定值,从而提高了保护标准的灵敏度和可靠性。通过在 10 kV 有源配电网络模型上进行 MATLAB/Simulink 仿真,所提出的方案在各种故障条件下都表现出了稳健的性能,提供了全面可靠的保护。该方案集成了多种故障特征并优化了灵敏度,为加强未来有源配电网络的保护提供了一种新方法,从而推动了最新技术的发展。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A Hybrid Protection Scheme for Active Distribution Networks Based on Fault Components Principle

A Hybrid Protection Scheme for Active Distribution Networks Based on Fault Components Principle

The integration of distributed generation (DG) into active distribution networks poses significant challenges to traditional protection schemes due to altered power flow directions and the impact on short-circuit fault currents. This paper proposes a novel multi-layered protection scheme based on fault current components to address these challenges. The scheme incorporates pilot protection, DG active islanding protection, and traditional three-stage overcurrent protection, leveraging the amplitude ratios and phase differences of positive and negative sequence current components. A compensation mechanism is introduced to adjust the protection setting, enhancing the sensitivity and reliability of the protection criteria. Through MATLAB/Simulink simulations on a 10 kV active distribution network model, the proposed scheme demonstrates robust performance under various fault conditions, providing comprehensive and reliable protection. This scheme advances the state-of-the-art by integrating multiple fault characteristics and optimizing sensitivity, offering a new approach to enhance the protection of future active distribution networks.

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来源期刊
Journal of Electrical Engineering & Technology
Journal of Electrical Engineering & Technology ENGINEERING, ELECTRICAL & ELECTRONIC-
CiteScore
4.00
自引率
15.80%
发文量
321
审稿时长
3.8 months
期刊介绍: ournal of Electrical Engineering and Technology (JEET), which is the official publication of the Korean Institute of Electrical Engineers (KIEE) being published bimonthly, released the first issue in March 2006.The journal is open to submission from scholars and experts in the wide areas of electrical engineering technologies. The scope of the journal includes all issues in the field of Electrical Engineering and Technology. Included are techniques for electrical power engineering, electrical machinery and energy conversion systems, electrophysics and applications, information and controls.
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