Power Flow Based Fault Analysis Method for Distribution Grid with Inverter-Based DER

Dong-Eok Kim, N. Cho
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引用次数: 2

Abstract

The objective of this paper is to provide a method for steady-state short-circuit analysis in power networks with distributed energy resources (DERs). For this purpose, we suggest an approach that takes into account the impact of current controlled DERs in the fault analysis. The current controlled DER has some characteristics that we should consider–1) DER's large filter inductance and 2) the limit effects of DER's output current and voltage. In addition, for the fault analysis, we should consider the characteristics of loads demanding constant power in the network. Therefore, to resolve these problems, we propose a power-flow based fault analysis technique.
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基于潮流的逆变器DER配电网故障分析方法
本文的目的是为分布式电网的稳态短路分析提供一种方法。为此,我们提出了一种在故障分析中考虑电流控制der影响的方法。电流控制DER有两个需要考虑的特点:1)DER的滤波电感大;2)DER的输出电流和电压的极限效应。此外,在进行故障分析时,还应考虑电网中恒功率负荷的特点。为了解决这些问题,我们提出了一种基于潮流的故障分析技术。
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