Open AccessDetection of Harmonic Components using the FFT and Instantaneous Reactive Power Theory
Author(s) -
Shuang Zhang,
Bangsen Tian,
Jian Liang,
Yuanchu Cheng
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2242/1/012034
Subject(s) - harmonics , fast fourier transform , harmonic , harmonic analysis , power (physics) , signal (programming language) , energy (signal processing) , computer science , electronic engineering , acoustics , physics , algorithm , engineering , electrical engineering , voltage , quantum mechanics , programming language
Harmonics is a widespread phenomenon in power system. With the rapid development of new energy generation, it is more urgent to monitor and suppress harmonics in power system. Considering the accuracy and real-time of harmonic detection, a novel harmonic detection method based on FFT and instantaneous reactive power theory is proposed. In this method, the harmonic frequency of the signal to be measured is first determined by windowed FFT, and then the harmonic amplitude and phase are calculated by an improved harmonic detection method based on instantaneous reactive power theory. The example results show that the proposed method has high detection accuracy and good real-time performance, and it can realize the fast detection of harmonics.