Synchronous oscillation characteristic and finite-time function projection synchronization control method for microgrids

被引：2
|
作者：
Yang, Xusheng [1 ,2 ]
Chen, Wei [1 ]
Wu, Lizhen [1 ]
Qiu, Nan [1 ]
机构：
[1] Lanzhou Univ Technol, Coll Elect & informat Engn, Lanzhou 730050, Gansu, Peoples R China
[2] Lanzhou Petrochem Univ Vocat Technol, Coll Elect & Elect Engn, Lanzhou 730060, Gansu, Peoples R China
来源：
ELECTRIC POWER SYSTEMS RESEARCH | 2023年 / 221卷
基金：
中国国家自然科学基金;
关键词：
Microgrid; Small -world network; System oscillation; Hierarchical control; Nonlinear dynamics; Synchronous control;
D O I：
10.1016/j.epsr.2023.109492
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Due to the nonsynchronization of each microsource node in a microgrid, the physical parameters of each node are not uniform. Therefore, unstable oscillation will occur for the whole microgrid system. To solve the oscil-lation problem caused by the nonsynchronization of each microsource node in the microgrid, a hierarchical control structure microgrid model is researched in this paper. Based on the theory of chaotic synchronization and finite time, a new microgrid synchronous oscillation characteristic and finite-time function projection synchro-nization control method is proposed. First, combining complex networks and microgrids, a nonlinear dynamic model of microgrid hierarchical control is established, and the abilities of the small-world network model and the formal network model to adjust for asynchronous oscillations are verified by comparing the two models. Then, aiming at the unsynchronized oscillations caused by external system noise, a new finite-time function projection synchronization control method is proposed. According to the verification results, the method can control external disturbances, avoiding system oscillation.
引用
收藏
页数：10
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