风电大侵彻电网暂态稳定性研究。模型问题和操作要求

J. Usaola, P. Ledesma, J. Rodríguez, J.L. Fernandez, D. Beato, R. Iturbe, J. R. Wilhelmi
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引用次数: 60

摘要

本文主要讨论两个问题。首先,描述了动态研究的模型,证明了不能用于其他研究(如电能质量研究)的简化。目前应用非常广泛的变速风力发电机(双馈感应发电机)也需要根据暂态稳定研究中使用的时间常数和积分步长对控制系统进行适当的建模。其次,介绍了涉及风能转换系统的暂态稳定性研究。这些研究包括固定速度和变速装置,并考虑了电网上的几种情况。对结果进行了比较,并从中得出结论。根据风能转换系统连接标准的要求,解决了所需保护的问题。这些主题适用于西班牙的情况,预计未来几年将有大量的风穿透。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Transient stability studies in grids with great wind power penetration. Modelling issues and operation requirements
Two main issues are addressed in this paper. First, models for dynamic studies are described, justifying simplifications that cannot be performed for other studies, such as power quality studies. Variable speed wind turbines (with doubly fed induction generator), very widely used nowadays, require also an adequate modelling of the control system, according to the time constants and integration step that are used in transient stability studies. Secondly, transient stability studies involving wind energy conversion systems are presented. These studies include fixed speed and variable speed devices, and several situations on the grid are considered. The results are compared and conclusions are drawn out from them. The problem of the required protections is addressed, in relation with the requirements of connection standards for wind energy conversion systems. These subjects are applied to the Spanish situation, where a great amount of wind penetration is foreseen for the next years.
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