太原理工大学学报2026，Vol.57Issue(2)：253-263,11.DOI:10.16355/j.tyut.1007-9432.20240882
一种基于新能源并网的LCL型逆变器有源阻尼控制策略
Active Damping Control Strategy of LCL Inverter Based on Renewable Energy Grid-Connection
黄均纬 1晁武杰 1邓超平 1戴立宇 1林民鑫 2金涛2
作者信息
- 1. 国网福建省电力有限公司电力科学研究院,福建 福州||福建省智能电网保护与运行控制重点实验室,福建 福州
- 2. 福州大学 电气工程与自动化学院,福建 福州
- 折叠
摘要
Abstract
[Purposes]Grid-tied inverters with LCL-type filters play a crucial role in offshore wind power systems.They can eliminate high-frequency current harmonics,thus ensuring that the power quality complies with grid-connection standards.Considering it is difficult to eliminate harmon-ic current distortions introduced by complex grid completely,effective strategies are necessary for their suppression.In this paper,an active damping(AD)method that replaces the PI controller with a proportional resonant(PR)and harmonic compensation controller to suppress background harmon-ics in the power grid,which not only enhances the suppression effect,but also reduces the reliance on sensors.[Methods]First,the transfer functions and equivalent circuits under the proposed AD con-trol strategy were analyzed,which combines inverter-side inductance current feedback with harmonic compensation.Second,the parameter design method for this strategy was derived and verified.Final-ly,the effectiveness of the proposed strategy was validated through Matlab/Simulink simulations and by constructing an experimental platform.[Results]Simulation and experimental results demonstrate that this method can effectively realize good performances of harmonic elimination and active damping resonance suppression with both stiff and weak grid conditions,while reducing the number of sensors used.关键词
分布式电网/LCL型滤波器/背景谐波/有源阻尼Key words
distributed power grid/LCL filter/background harmonics/active damping分类
信息技术与安全科学引用本文复制引用
黄均纬,晁武杰,邓超平,戴立宇,林民鑫,金涛..一种基于新能源并网的LCL型逆变器有源阻尼控制策略[J].太原理工大学学报,2026,57(2):253-263,11.
