电气技术2026，Vol.27Issue(6)：1-9,22,10.
兼具有源阻尼器功能的并网逆变器改进虚拟阻抗控制方法
Improved virtual impedance control method for grid-connected inverter with active damper function
江东伯 1屈艾文 2桂仁傲 1赵文波1
作者信息
- 1. 福州大学电气工程与自动化学院,福州 350108
- 2. 福州大学电气工程与自动化学院,福州 350108||数字能源福建省高校重点实验室(福州大学),福州 350108
- 折叠
摘要
Abstract
To enhance the resonance suppression effect of the grid-connected inverters with active damper function under variations in grid impedance,an improved virtual impedance control method applied in the active damper function is proposed.Existing virtual impedance control method utilizes adaptive regulator to generate virtual impedance for damping wide-band harmonics,and no targeted enhancement of the damping effect on harmonics at the resonance frequency has been achieved.Based on the existing virtual impedance control methods,an improved module is added in the proposed approach.The sliding discrete Fourier transform(SDFT)is employed to identify the resonance frequency.The resonant suppression effect is enhanced by reducing the magnitude of the virtual impedance at the resonant frequency.Finally,the feasibility and effectiveness of the proposed improved virtual impedance control method for grid-connected inverter with active damper function are verified by simulation.关键词
并网逆变器/有源阻尼器/谐振抑制/虚拟阻抗Key words
grid-connected inverter/active damper/resonance suppression/virtual impedance引用本文复制引用
江东伯,屈艾文,桂仁傲,赵文波..兼具有源阻尼器功能的并网逆变器改进虚拟阻抗控制方法[J].电气技术,2026,27(6):1-9,22,10.
