Measuring harmonics by an improved FFT-based algorithm with considering frequency variations

Gary W. Chang, Cheng Yi Chen, Meng Chi Wu

研究成果: 書貢獻/報告類型會議論文篇章同行評審

8 引文 斯高帕斯(Scopus)

摘要

Fast Fourier Transform (FFT) is widely used for the signal processing because of its computational efficiency. Most power quality meters and digital relays adopt FFT-based algorithm to characterize harmonics of the measured signals. A typical FFT-based algorithm may lead to inaccurate results, if the system frequency varies. This paper proposes an improved FFT-based algorithm for measuring harmonics. The performance of the proposed algorithm is then validated by testing the simulated and actual measured signals. Results are compared with those obtained by the conventional FFT algorithm and by a power quality meter. It shows that the proposed algorithm is computational efficient and the solution accuracy is maintained.

原文???core.languages.en_GB???
主出版物標題ISCAS 2006
主出版物子標題2006 IEEE International Symposium on Circuits and Systems, Proceedings
頁面1203-1206
頁數4
出版狀態已出版 - 2006
事件ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems - Kos, Greece
持續時間: 21 5月 200624 5月 2006

出版系列

名字Proceedings - IEEE International Symposium on Circuits and Systems
ISSN(列印)0271-4310

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???event.eventtypes.event.conference???ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems
國家/地區Greece
城市Kos
期間21/05/0624/05/06

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