@inproceedings{19e91a39891146049fbea2a7b8196738,
title = "An improved active damping control in grid-connected converter system",
abstract = "Grid-connected converters have been widely used in distributed generations. However, the resonance brought by converters in weak grid has been a great threat to system stability. Impedance-based method provides a powerful tool for stability analysis. Active damping is also widely applied to improve system stability. This paper derives the impedance model of grid-connected converter system and analyzes the harmonic resonance mechanism. The effects of passive damping and active damping are also compared, especially their influence on non-passive region. Impact of capacitor current feedback gain on the output admittance is also analyzed. High-pass filter is used to compensate the digital control delay and reduce the non-passive region of output admittance. An improved active damping is proposed to eliminate second harmonic introduced by active damping. The performance of proposed method is verified in Matlab/Simulink simulations. The simulation result shows the effectiveness of proposed method.",
keywords = "active damping, delay compensation, harmonic elimination, harmonic resonance, passive damping",
author = "Huaiyuan Liu and Lei Li and Xuemei Zheng and Zigao Xu and Dianguo Xu and Qiang Gao",
note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017 ; Conference date: 29-10-2017 Through 01-11-2017",
year = "2017",
month = dec,
day = "15",
doi = "10.1109/IECON.2017.8216403",
language = "英语",
series = "Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "2396--2401",
booktitle = "Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society",
address = "美国",
}