规模化光伏接入对地区电网电压稳定性的影响

Scale Photovoltaic Connected to District Power Network Voltage Stability

摘要: 光伏发电的大规模接入对传统电网的控制运行带来了重大影响，包括其对接入地区电网的电压稳定性。本文将针对大规模光伏发电对接入地区电网电压稳定性的影响进行深入研究。文章首先对光伏电场的运行与出力特性进行了深入分析，进而构建了不同的光伏发电场景，并对比分析了不同场景下光伏发电对接入电网电压稳定性的影响。以上述影响分析为基础，文章进一步研究了光伏电场的并网逆变器及场侧无功补偿装置对提升地区电网电压稳定性的贡献。最终在不增加额外无功调节装置的情况下，实现了大规模光伏接入地区电网电压稳定性的提升，对含大规模光伏接入的地区电网具有重要的借鉴、参考意义。

Abstract: Large-scale photovoltaic hair to control access to the traditional power grid operation has brought a signifi-cant impact, including photovoltaic generation on voltage stability. This article will focus on large-scale photovoltaic power generation access for regional power grid voltage stability in-depth study to explore large-scale photovoltaic access to the regional power grid voltage stability related effects existing This article first makes a deep analysis on solar farm operation and output characteristics, and constructs different scenes, under which makes a comparative analysis on the PV grid voltage stability. Based on the above analysis of impact, this article further studies the photovoltaic grid- connected inverter electric field and the field side reactive power compensation device to enhance the region’s contribu- tion to the stability of the grid voltage. Finally, in no additional reactive power regulation unit case, the realization of large-scale photovoltaic regional power grid voltage stability raised, which has an important reference value for large-scale photovoltaic grid connected areas.