arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.11494eess.SYcs.SY
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孤岛微网弹性二次电压控制:基于ESKBF的分布式快速终端滑模控制方法

Resilient Secondary Voltage Control of Islanded Microgrids: An ESKBF-Based Distributed Fast Terminal Sliding Mode Control Approach

Pudong Ge, Yue Zhu, Tim C. Green, Fei Teng

摘要:

针对含逆变器分布式电源的孤岛微网弹性运行问题,提出了一种基于扩展状态卡尔曼-布西滤波器(ESKBF)和快速终端滑模(FTSM)的分布式二次电压控制方法。为了解决多个不确定性的共存,提出了一个统一的建模框架来表示不同类型的干扰,包括参数摄动,测量噪声,和不可测的外部变量,通过扩展状态方法。卡尔曼-布西滤波器,然后应用于精确估计的状态信息的扩展DG模型。此外,在精确估计的基础上,设计了具有终端吸引子的快速终端滑模(FTSM)曲面,以保持系统的稳定性,加快一致性跟踪的收敛速度,从而显著提高了二次电压控制在正常和即插即用两种情况下的性能.最后,在MATLAB/Simulink和实验平台上进行了实例研究,验证了所提方法的有效性.

英文摘要:

This paper proposes a distributed secondary voltage control method based on extended state Kalman-Bucy filter (ESKBF) and fast terminal sliding mode (FTSM) control for the resilient operation of an islanded microgrid (MG) with inverter-based distributed generations (DGs). To tackle the co-existence of multiple uncertainties, a unified modelling framework is proposed to represent the set of different types of disturbances, including parameter perturbation, measurement noise, and immeasurably external variables, by an extended state method. Kalman-Bucy filter is then applied to accurately estimate the state information of the extended DG model. In addition, based on the accurate estimation, a fast terminal sliding mode (FTSM) surface with terminal attractors is designed to maintain the system stability and accelerate the convergence of consensus tracking, which significantly improves the performance of secondary voltage control under both normal and plug-and-play operation. Finally, case studies are conducted in both MATLAB/Simulink and an experimental testbed to demonstrate the effectiveness of the proposed method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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