Stability Analysis of Load Frequency Control for Shipboard Microgrids With Occasional Large Delays

被引：8

作者：

Yuan, Zhe-Li ^{[1
,2
,3
]}

Zhang, Chuan-Ke ^{[1
,2
,3
]}

Shangguan, Xing-Chen ^{[1
,2
,3
]}

Jin, Li ^{[1
,2
,3
]}

Xu, Da ^{[1
,2
,3
]}

He, Yong ^{[1
,2
,3
]}

机构：

[1] China Univ Geosci, Sch Automat, Wuhan 430074, Peoples R China

[2] Intelligent Automat Complex Syst, Wuhan 430074, Peoples R China

[3] Minist Educ, Engn Res Ctr Intelligent Technol Geoexplorat, Wuhan 430074, Peoples R China

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2022年 / 69卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Delays; Stability criteria; Frequency control; Switches; Delay effects; Power system stability; Microgrids; Shipboard microgrid; stability; large delay periods; load frequency control; DEPENDENT STABILITY; POWER-SYSTEMS; TIME;

D O I：

10.1109/TCSII.2021.3135962

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：

This brief investigates stability analysis of delayed load frequency control (LFC) system for shipboard microgrids (MG). Different from the previous works, a time-varying delay with occasional large value in a few time intervals is studied. Firstly, by dividing the delay into two regions, the LFC of shipboard MG is modeled as a linear system with a switched delay. Then, a stability criterion is proposed to analyze the relationship between the exponential stability of system and the length/frequency of large delay. Finally, a case study shows that the system may still remain stable for the large delay satisfying specific conditions, which illustrates the effectiveness and advantages of the proposed method.

引用

页码：2161 / 2165

页数：5

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