Performance Comparison and Analysis of All-Digital Adaptive Filter with Different Discrete Methods

被引：0
|
作者：
Liu Y. [1 ]
Duan C. [1 ]
机构：
[1] School of Electrical Engineering, Beijing Jiaotong University, Beijing
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2021年 / 36卷 / 20期
关键词：
Adaptive filter; Amplitude gain; Frequency offset; One-step-delay; Orthogonality; Second-order generalized integrator;
D O I：
10.19595/j.cnki.1000-6753.tces.200588
中图分类号：
学科分类号：
摘要：
The Adaptive filter (AF) based on second-order generalized integrator (SOGI) is widely applied in power grid measurement, motor position/speed detection and estimation occasions. In the process of digital realization, the existence of unit delay and different discrete methods will degrade the performance of the system. Under the premise of considering the aforementioned factors, the stability, frequency offset, amplitude gain and orthogonality were used as quantitative indicators to evaluate the performance degradation of the digital AF. And then, the performance variation with carrier ratio was given to provide the theoretical basis for digital implementation of the adaptive filter. Simulation and experimental results verified the theoretical analysis. © 2021, Electrical Technology Press Co. Ltd. All right reserved.
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页码：4339 / 4349
页数：10
相关论文
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