寻找不影响保护系统的电网形成技术：一项大有可为的技术

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS

ACS Applied Bio Materials Pub Date : 2024-06-01 DOI:10.1109/MELE.2024.3386036

Christopher L. Peralta, Hoang P. Dang, Hugo N. Villegas Pico

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引用次数: 0

摘要

传统线路保护元件的设计以同步电机在故障期间的行为为指导。由于存在巨大的绕组电感和旋转质量，同步电机的反向电动势 (EMF) 电压波形的幅值、角频率和相位角在故障发生后的数百毫秒内几乎保持不变。这有助于在 mho 距离元件中采用记忆极化技术，该技术在以机器为主的电网中非常有效。然而，由于电力电子设备缺乏场绕组和惯性矩，这一假设不再适用于基于逆变器的资源 (IBR)。值得注意的是，负序定向过流保护和四边形距离元件受到了早期采用电网跟踪 (GFL) 控制的 IBR 的影响，因为它们在非对称故障时不会注入负序电流。

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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Searching for Grid-Forming Technologies That Do Not Impact Protection Systems: A promising technology

The design of legacy-line protection elements has been guided by the behavior of synchronous machines during faults. Because of the significant field-winding inductance and rotating mass, the magnitude, angular frequency, and phase angle of the back-electromotive force (EMF) voltage waveforms of synchronous machines remain practically constant for several hundreds of milliseconds after a fault occurs. This has facilitated the engineering of the memory-polarization technique in mho distance elements, which has been effective for machine-dominant power grids. However, this assumption is no longer held for inverter-based resources (IBRs) because of the lack of field winding and moment of inertia in power electronics devices. Notably, the negative-sequence directional overcurrent protection and the quadrilateral distance elements have been impacted by early IBRs with grid-following (GFL) controls because they did not inject negative-sequence currents during asymmetrical faults.

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来源期刊

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464

期刊介绍： ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.