利用微位测量单元提高配电系统的恢复能力,解决故障后的无意孤岛问题

IF 1.6 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Zahra Shafiei Chafi, Hossein Afrakhte, Alberto Borghetti
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引用次数: 0

摘要

本文提出了一种评估网络状况的新方法,以便及时做出有关分布式发电机 (DG) 保护措施或控制调整的决策,而不是在检测到意外孤岛事件时立即断开连接。通过促进快速决策,该战略旨在最大限度地缩短停电时间、提高系统可靠性和客户满意度。所提方法的第一步是实施一种被动孤岛检测方法,该方法基于对配有微型相位测量单元(μPMU)的 DG 母线的电压和电流相位的连续监测。随后,应用故障线路检测算法来识别故障是否位于隔离区内。如果确定故障位于隔离区域内,则 DG 将断开与电网的连接,仅向本地负载供电。相反,如果故障位于隔离区域之外,或由于故障以外的原因导致孤岛,则会调整 DG 的控制策略,以有效支持孤岛条件。通过整合 MATLAB 和 DIgSILENT 仿真环境,对所建议程序的性能进行了深入分析。评估使用了 IEEE 33 总线和 IEEE 69 总线测试系统,并同时使用了同步型和逆变型 DG。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Enhancing distribution system resilience using micro-phasor measurement units to address unintentional islands following faults

Enhancing distribution system resilience using micro-phasor measurement units to address unintentional islands following faults

This paper proposes a novel approach to assess network conditions, enabling timely decisions to be made regarding protective actions or control adjustments for distributed generators (DGs) instead of immediate disconnection upon detecting an unplanned islanding event. By facilitating swift decision-making, this strategy aims to minimize outage durations, enhance system reliability, and improve customer satisfaction levels. The first step in the proposed approach involves the implementation of a passive islanding detection method based on continuous monitoring of voltage and current phasors at DG buses equipped by micro-phasor measurement units (μPMUs). Subsequently, a faulted line detection algorithm is applied to identify if the fault lies within the isolated area. If the fault determined to be within the separated region, the DG disconnects from the grid, providing power solely to its local load. In contrast, if the fault is located outside the isolated area or if islanding occurs due to reasons other than faults, the DGs control strategies are adjusted to support the islanded conditions effectively. The performance of the proposed procedure is thoroughly analyzed through the integration of MATLAB and DIgSILENT simulation environments. The IEEE 33-bus and IEEE 69-bus test systems with both synchronous-based and inverter-based DGs are used for the assessment.

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来源期刊
Electrical Engineering
Electrical Engineering 工程技术-工程:电子与电气
CiteScore
3.60
自引率
16.70%
发文量
0
审稿时长
>12 weeks
期刊介绍: The journal “Electrical Engineering” following the long tradition of Archiv für Elektrotechnik publishes original papers of archival value in electrical engineering with a strong focus on electric power systems, smart grid approaches to power transmission and distribution, power system planning, operation and control, electricity markets, renewable power generation, microgrids, power electronics, electrical machines and drives, electric vehicles, railway electrification systems and electric transportation infrastructures, energy storage in electric power systems and vehicles, high voltage engineering, electromagnetic transients in power networks, lightning protection, electrical safety, electrical insulation systems, apparatus, devices, and components. Manuscripts describing theoretical, computer application and experimental research results are welcomed. Electrical Engineering - Archiv für Elektrotechnik is published in agreement with Verband der Elektrotechnik Elektronik Informationstechnik eV (VDE).
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