Instantaneous Frequency Tracking of Harmonic Distortions for Grid Impedance Identification based on Kalman Filtering

被引：5
|
作者：
Broen, Anders Kjeka [1 ]
Amin, Mohammad [1 ]
Skjong, Espen [1 ]
Molinas, Marta [1 ]
机构：
[1] Norwegian Univ Sci & Technol, Dept Engn Cybernet, Trondheim, Norway
来源：
2016 IEEE 17TH WORKSHOP ON CONTROL AND MODELING FOR POWER ELECTRONICS (COMPEL) | 2016年
关键词：
D O I：
10.1109/COMPEL.2016.7556708
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper presents a non-invasive approach for real-time grid impedance identification based on the principle of instantaneous frequency tracking of voltage and current harmonics already present in the system, by the use of Kalman Filter (KF). The KF based technique is compared to the FFT frequency domain approach highlighting the advantages and disadvantages of each method. The main limitation of the KF-based identification lies in its intrinsic model based nature, which in this case will limit its scope to the system steady state and to stationary signals. The KF based approach presented in this paper, can be useful as a basis for real-time grid stability assessment based on the impedance identification.
引用
收藏
页数：7
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