锁相环
控制理论(社会学)
带宽(计算)
稳健性(进化)
网格
PLL多位
电压
同步(交流)
计算机科学
电子工程
工程类
拓扑(电路)
数学
控制(管理)
电气工程
电信
生物化学
化学
几何学
人工智能
抖动
基因
作者
Feifan Chen,Liang Zhao,Lennart Harnefos,Xiongfei Wang,Jarno Kukkola,Mikko Routimo
标识
DOI:10.36227/techrxiv.23979081.v1
摘要
<p>The phase-locked loop (PLL) is a commonly used synchronization control method for grid-tied inverters. The PLL-synchronized inverters tend to have poor stability robustness with weak grid interconnections, especially when the PLL is designed with a high control bandwidth. To tackle this challenge, this paper proposes an enhanced q-axis voltage integral damping (Q-VID) control, which not only stabilizes PLL-synchronized inverters in weak grids but also lifts the restriction on PLL bandwidth. This superior feature enables inverters to operate stably in ultraweak grids and with a superior transient response. Experimental tests confirm the performance of the method with 400-Hz PLL bandwidth under a short circuit ratio of 1.28 of the grids. </p>
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