控制(管理)
控制理论(社会学)
计算机科学
人工智能
作者
S. Chen,Hua Han,Z.Y. Wu,Zhenzhen Luo,Zhangjie Liu,Yonglu Liu,Chi K. Tse
出处
期刊:IEEE Transactions on Circuits and Systems I-regular Papers
[Institute of Electrical and Electronics Engineers]
日期:2024-05-17
卷期号:71 (8): 3867-3879
标识
DOI:10.1109/tcsi.2024.3399790
摘要
Frequency damping control is a crucial aspect of islanded microgrids utilizing multiple virtual synchronous generators (VSGs). This paper studies the effects of line impedance mismatches and transient frequency out-of-sync leading to frequency interactive oscillation in VSGs. To address this issue, we propose a distributed interactive damping and zero-error control method that utilizes sparse communications. The objective of this method is to effectively suppress frequency oscillation by minimizing the differences in frequency dynamics among all VSGs. By implementing this approach, a low rate of change of frequency (RoCoF), accurate active power sharing, and zero frequency deviation are ensured. Through dynamic performance analysis, frequency characteristic analysis, and stability analysis based on LaSalle's invariance principle, we demonstrate significant improvements in system stability, as well as dynamic and steady state performances. Finally, simulation and experimental results obtained under load changes, short-circuits, and communication faults validate the effectiveness of the proposed control method.
科研通智能强力驱动
Strongly Powered by AbleSci AI