Abstract Microgrids (MGs) are characterized by faster dynamics than conventional grid-connected distributions systems. This is in part due to the lack of inertia of inverter-interfaced distributed energy resources such as photovoltaic and energy storage systems. In this context, load dynamics considerably affects the transient stability performance of MGs, especially if disconnected from the main grid. The aim of the paper is to analyze the influence of the load modeling and the load composition in the transient stability assessment of a medium voltage MG during islanding transition. The MG we analyze consists of a photovoltaic power plant, two battery energy storage systems, a synchronous generator and different classes and types of load, which we consider representative for the problem of interest. The system is implemented in the EMTP-RV simulation environment. The importance of appropriate load modeling for the adequate analysis of the transient response of an islanding microgrid is also addressed and discussed.

中文翻译：

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孤岛过渡期间负载动态响应对微电网稳定性的影响

摘要 微电网 (MG) 的特点是动态速度比传统的并网配电系统快。这部分是由于逆变器接口的分布式能源（如光伏和储能系统）缺乏惯性。在这种情况下，负载动态显着影响 MG 的暂态稳定性性能，尤其是在与主电网断开连接的情况下。本文的目的是分析负载建模和负载组成对孤岛过渡期间中压 MG 暂态稳定性评估的影响。我们分析的 MG 由一个光伏电站、两个电池储能系统、一个同步发电机和不同类别和类型的负载组成，我们认为它们代表了感兴趣的问题。该系统在EMTP-RV仿真环境中实现。还讨论并讨论了适当的负载建模对于充分分析孤岛微电网瞬态响应的重要性。