南方电网技术2024，Vol.18Issue(3)：65-71,7.DOI:10.13648/j.cnki.issn1674-0629.2024.03.007
弱电网下光伏并网逆变器谐振抑制方法综述
Overview of Resonance Suppression Methods for PV Grid-Connected Inverters in Weak Grid
摘要
Abstract
Under the background of"carbon peak and carbon neutrality"goals,the power system has formed a"double-high"(high proportion of renewable energy and high proportion power electronic equipment)development trend,resulting in a weak grid characteristic of the power grid.Real-time changes in grid impedance under weak grid lead to stability issues such as resonant frequency offset of photovoltaic(PV)grid-connected inverters,and multiple resonant peaks in inverter clusters.Aiming at the fact that the latest resonance suppression methods for PV grid-connected inverters in weak grid have not been systematically summarized,this article summarizes the hot spot control methods in the field of PV grid-connected inverter resonance suppression in"double-high"power systems from the perspectives of inverter unit resonance suppression methods and inverter cluster resonance suppression methods under weak grid.The development direction of improving the stability of PV grid-connected inverters is pointed out.关键词
"双碳"目标/"双高"电力系统/光伏并网逆变器/谐振抑制Key words
"carbon peak and carbon neutrality"goals/"double-high"power system/PV grid-connected inverters/resonance suppression分类
动力与电气工程引用本文复制引用
刘江,高淑萍,孙向东,宋卫章..弱电网下光伏并网逆变器谐振抑制方法综述[J].南方电网技术,2024,18(3):65-71,7.基金项目
国家自然科学基金资助项目(51777166 （）
51877176). Supported by the National Natural Science Foundation of China(51777166 （）
51877176). （）
