Research on reactive power compensation control method for improving the voltage stability of photovoltaic station area

IF 2.6 4区 工程技术 Q3 ENERGY & FUELS
Wei Zhang, Zhe Zhang, Yuanyi Dai, Chen Dong, Zhijia Yu, Yue Hu
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引用次数: 0

Abstract

In the case of resistance-inductance lines in PV station area, the problem of voltage overstep is easy to occur. This article proposes a reactive power compensation control method to improve the voltage stability in the photovoltaic power plant area, which addresses the problem of voltage at the point of common coupling (PCC) exceeding the upper limit due to resistance circuits and exceeding the lower limit due to relatively insufficient reactive power output when the output active power is high. The idea is to achieve dynamic adjustment of PCC voltage by paralleling a static reactive power generator (SVG) at the grid connection point and using a variable droop control method. In addition, a reactive power optimization method based on improved particle swarm optimization (IPSO) algorithm is proposed to address the changes in power flow caused by photovoltaic integration in the distribution network system. The proposed improvement method not only effectively reduces network losses but also significantly improves voltage stability.
提高光伏电站区域电压稳定性的无功补偿控制方法研究
在光伏电站区域存在电阻电感线路的情况下,容易出现电压越限问题。本文提出了一种提高光伏电站区域电压稳定性的无功补偿控制方法,以解决共耦点(PCC)电压因电阻回路而超过上限,以及在输出有功功率较高时因无功输出相对不足而超过下限的问题。其思路是通过在电网连接点并联一个静态无功功率发生器(SVG),并采用可变垂降控制方法来实现 PCC 电压的动态调节。此外,还提出了一种基于改进粒子群优化(IPSO)算法的无功优化方法,以解决配电网系统中光伏发电集成引起的功率流变化问题。所提出的改进方法不仅能有效降低网络损耗,还能显著提高电压稳定性。
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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来源期刊
Frontiers in Energy Research
Frontiers in Energy Research Economics, Econometrics and Finance-Economics and Econometrics
CiteScore
3.90
自引率
11.80%
发文量
1727
审稿时长
12 weeks
期刊介绍: Frontiers in Energy Research makes use of the unique Frontiers platform for open-access publishing and research networking for scientists, which provides an equal opportunity to seek, share and create knowledge. The mission of Frontiers is to place publishing back in the hands of working scientists and to promote an interactive, fair, and efficient review process. Articles are peer-reviewed according to the Frontiers review guidelines, which evaluate manuscripts on objective editorial criteria
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