光伏电站并联电容器组设计

A. Kalyuzhny, B. Reshef, G. Yehuda, Gladbin David, P. Koulbekov, T. Day
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引用次数: 4

摘要

为保证光伏发电机组在中压配电系统中的大规模应用,避免因光伏输出功率下降而造成不可接受的电压变化,本文提出了一种简单、低成本的解决方案。该解决方案包括以预定的超前功率因数运行光伏发电,并在光伏电站并联上增加电容器组,以补偿光伏逆变器吸收的无功功率。将所开发的负序电流差法应用于电容器组的不平衡保护,可以实现与光伏电站并联的电容器组的小型化和低成本设计。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Design of capacitor bank in parallel to photovoltaic power plant
In order to ensure a large-scale application of PV generators in MV distribution system without unacceptable voltage changes due to drops of PV power output a simple, low-cost solution is developed. The solution includes operation of PV with predetermined leading power factor and addition of a capacitor bank in parallel to PV plant in order to compensate the reactive power absorbed by the PV inverters. Application of the developed negative-sequence current difference method for the unbalance protection of the capacitor banks enables to achieve a compact and cost-reduced design of the banks connected in parallel to PV power plants.
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