Simulation of communication infrastructure of a centralized microgrid protection system based on IEC 61850-7-420

T. Ustun, C. Ozansoy, A. Zayegh
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引用次数: 43

Abstract

Recently `Microgrid' concept has been proposed where the networks are divided into smaller manageable sets which can be more effectively and efficiently operated. This concept allows conventional grids to be made suitable for large scale deployments of distributed generation. The dynamic structures of micro-grids change very often depending on various network factors. This dynamic behavior of micro-grids to alter operation under various network conditions is an area that needs to be more thoroughly investigated and understood in moving forward with the integration of the micro-grid concept to existing power supply grids. This paper presents one embodiment of a protection system which employs a microgrid central protection unit (MCPU) to coordinate differential current protection. The communication infrastructure of the proposed protection system has been modeled according to IEC 61850 international communication standard for power networks as well as its recent extension for distributed generators (DGs) IEC 61850-7-420. The system is implemented in Matlab/Simulink Environment where the signals and their attributes are adjusted according to these standards.
基于IEC 61850-7-420的集中式微电网保护系统通信基础设施仿真
最近提出了“微电网”概念,将网络划分为更小的可管理集,可以更有效和高效地运行。这一概念使得传统电网适合大规模部署分布式发电。由于各种网络因素的影响,微电网的动态结构经常发生变化。微电网在各种网络条件下改变运行的动态行为是一个需要更深入研究和理解的领域,以推进微电网概念与现有电网的整合。本文提出了一种采用微电网中央保护单元(MCPU)协调差动电流保护的保护系统的实施例。拟议保护系统的通信基础设施已根据IEC 61850国际电网通信标准及其最近扩展的分布式发电机(dg) IEC 61850-7-420进行建模。该系统在Matlab/Simulink环境下实现,并根据这些标准对信号及其属性进行调整。
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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