锁相环
控制理论(社会学)
惯性
逆变器
传递函数
循环(图论)
同步(交流)
PLL多位
网格
工程类
计算机科学
电压
电子工程
物理
拓扑(电路)
数学
电气工程
相位噪声
控制(管理)
经典力学
组合数学
人工智能
几何学
作者
Gaoxiang Li,Xiaoxu Bao,Xiao Liu
出处
期刊:IEEE Transactions on Industrial Informatics
[Institute of Electrical and Electronics Engineers]
日期:2022-07-07
卷期号:19 (4): 5585-5592
被引量:3
标识
DOI:10.1109/tii.2022.3189014
摘要
Power grid disturbance usually degrades the performance of phase-locked loop (PLL), which may cause the stability issue of grid-connected inverter. Considering the power grid disturbance, including voltage amplitude, grid frequency, and grid stiffness, a double-loop inertia phase-locked loop (DLI-PLL) with antidisturbance ability is proposed. In addition, the mechanism and characteristics of the proposed DLI-PLL are analyzed based on the unit step response of transfer function. The inertia of the proposed DLI-PLL can be controlled by adjusting the control parameters. Compared with the single-loop inertia phase-locked loop, the proposed DLI-PLL have better grid synchronization performance in case of grid frequency fluctuation. Meanwhile, due to the inertial control of angular frequency, the designed DLI-PLL has good antidisturbance ability. Finally, experimental results validate the effectiveness of the proposed DLI-PLL.
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