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A framework to technically evaluate integration of utility-scale photovoltaic plants to weak power distribution systems

机译：从技术上评估公用事业规模的光伏电站与弱配电系统集成的框架

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摘要

Weak power distribution systems are those that are highly sensitive to fluctuations in voltage magnitude and/or frequency. Due to the intrinsic intermittency and inertia-less nature of photovoltaic systems, the connection of a utility-scale photovoltaic plant to a weak distribution system can lead to grid instability or even collapse. This paper presents a structured framework for performing grid connection studies to evaluate the integration of photovoltaic plants into weak distribution systems. The two main characteristics of weak distribution systems (i.e., low-inertia and high-impedance connection points) are handled separately since each factor has distinct issues, risks and mitigation methods. Also, some systems may only exhibit weakness in one of these aspects, but not the other. Recommendations are provided in the paper for the appropriate studies to be performed and the features to be investigated for the development of utility-scale photovoltaic plants connected to weak distribution systems.
机译：弱配电系统是对电压幅度和/或频率波动高度敏感的系统。由于光伏系统固有的间歇性和无惯性，将公用事业规模的光伏电站连接到配电系统薄弱的地方会导致电网不稳定甚至崩溃。本文提出了进行电网连接研究的结构化框架，以评估光伏电站向弱配电系统的整合。弱配电系统的两个主要特征（即低惯性和高阻抗连接点）要分别处理，因为每个因素都有各自不同的问题，风险和缓解方法。同样，某些系统可能仅在这些方面之一中表现出弱点，而在其他方面则没有。本文针对要进行的适当研究和开发与弱配电系统连接的公用事业规模光伏电站的特征提供了建议。

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