Open-Phase Resonance in Shunt-Compensated AC Cable Lines

F. Gatta, A. Geri, S. Lauria, M. Maccioni, F. Palone, L. Buono
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Abstract

Shunt-compensated ac cable lines (CLs) are a commonly used solution for the connection of renewable energy sources, such as offshore or onshore windfarms. Three phase shunt reactors allow for a cheap and reliable compensation of the surplus reactive power generated by the power cables; however, the interphase magnetic coupling can introduce open phase resonance phenomenon, which is normally not expected to occur in underground CLs, which do not have any electrostatic coupling. Theoretical formulae for evaluating the risk of open-phase resonance in shunt compensated CLs are presented in the paper, as well as steady-state and time domain simulations using detailed cable and shunt reactor models.
并联补偿交流电缆线路的开相谐振
并联补偿交流电缆线路(CLs)是连接可再生能源(如海上或陆上风电场)的常用解决方案。三相并联电抗器允许廉价和可靠的补偿电力电缆产生的多余无功功率;然而,相间磁耦合会引入开相共振现象,这在地下CLs中通常不会发生,因为地下CLs不存在任何静电耦合。本文给出了评估并联补偿电抗器中开相谐振风险的理论公式,并使用详细的电缆和并联电抗器模型进行了稳态和时域仿真。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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