Observer-based adaptive scheme for fixed-time frequency estimation of biased sinusoidal signals

被引：15
|
作者：
Shi, Shang [1 ]
Min, Huifang [2 ]
Ding, Shihong [3 ]
机构：
[1] Hohai Univ, Coll Energy & Elect Engn, Nanjing 211100, Jiangsu, Peoples R China
[2] Nanjing Univ Sci & Technol, Sch Automat, Nanjing 210094, Jiangsu, Peoples R China
[3] Jiangsu Univ, Sch Elect & Informat Engn, Zhenjiang 212013, Jiangsu, Peoples R China
来源：
AUTOMATICA | 2021年 / 127卷 / 127期
基金：
中国国家自然科学基金;
关键词：
Frequency estimation; Observer-based adaptive; Fixed-time estimation;
D O I：
10.1016/j.automatica.2021.109559
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this technical communique, we propose a novel observer-based adaptive scheme to deal with the parameter estimation problem of biased sinusoidal signals. Different from the existing adaptive frequency estimation scheme, the proposed scheme can achieve fixed-time frequency estimation, whose convergence time is independent of the initial errors. Simulation example with different initial values shows the effectiveness of the theoretical result. (c) 2021 Elsevier Ltd. All rights reserved.
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页数：4
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