One of the proven approaches to achieve optimal operation in a microgrid is through network reconfiguration. The work presented in this article aims to carry out optimal reconfiguration on an islanded system. Optimal sizing and siting is generally done with an assumption of full availability of the apparent power of the distributed generator. However, the power available in a generator or inverter (for renewable energy sources) is lower than the apparent power. In this study, microgrid reconfiguration is revisited from the capability curve perspective. The limit imposed by four different curves for an inverter and a modified D curve for synchronous generator is used. Effect of reconfiguration on the system loss, radiality, voltage profile, reactive power reserves is investigated on a modified IEEE 33 bus system. It is observed that the system is found to have better voltage profile and less losses by incorporating reconfiguration feature using the capability curves.

中文翻译：

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PQ限制对微电网重构的影响：能力曲线的角度

在微电网中实现最佳运行的一种行之有效的方法是通过网络重新配置。本文中介绍的工作旨在对孤岛系统进行最佳的重新配置。最佳尺寸和选址通常是在分布式发电机视在功率完全可用的前提下完成的。但是，发电机或逆变器（用于可再生能源）中的可用功率低于视在功率。在这项研究中，从能力曲线的角度重新审视了微电网的重新配置。使用逆变器的四个不同曲线和同步发电机的修改D曲线施加的极限。在改进的IEEE 33总线系统上研究了重新配置对系统损耗，半径，电压曲线，无功功率储备的影响。