Fault response of grid-connected inverter dominated networks
Fault response of grid-connected inverter dominated networks
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DOI：
10.1109/pes.2010.5589981
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发表时间：
2010-07
期刊：
影响因子：
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通讯作者：
C. Plet;M. Graovac;Tim C. Green;R. Iravani
中科院分区：
文献类型：
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作者：
C. Plet;M. Graovac;Tim C. Green;R. Iravani
分布式发电装机容量的快速增长引起了人们对其对保护系统正常运行的影响的关注。特别是逆变器接口分布式发电（IIDG）有限的故障电流能力可能导致配电网保护系统的故障，而配电网保护系统在很大程度上依赖于过流保护技术。缺乏经过试验和测试的模型和方法来计算逆变器故障电流贡献，这对引入IIDG是一个重大挑战。本文表明，通过一些细微的改变，传统的分析网络分析技术可以用于分析逆变器主导的配电网的故障响应。通过PSCAD仿真和实验结果验证了理论结果。
The rapid increase in installed distributed generation (DG) has led to concerns about the impact on the proper operation of the protection system. In particular, the limited fault current capability of inverter interfaced distributed generation (IIDG) could lead to malfunctioning of the distribution network protection system which largely relies on overcurrent based protection techniques. The absence of tried and tested models and methods to calculate the inverter fault current contribution has been a significant challenge to the introduction of IIDG. This paper shows that with a few subtle changes, conventional analytical network analysis techniques can be used to analyse the fault response of inverter dominated distribution networks. The theoretical results are validated by PSCAD simulations and experimental results.