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

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 poi...

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Bibliographic Details
Published inFrontiers in energy research Vol. 12
Main Authors Zhang, Wei, Zhang, Zhe, Dai, Yuanyi, Dong, Chen, Yu, Zhijia, Hu, Yue
Format Journal Article
LanguageEnglish
Published Frontiers Media S.A 13.09.2024
Subjects
distributed network
droop control
particle swarm optimization
photovoltaic generation
reactive power compensation
voltage beyond limits
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Summary: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.
ISSN:2296-598X
2296-598X
DOI:10.3389/fenrg.2024.1396074