A Two-Stage ADALINE for Harmonics and Interharmonics Measurement

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Title:	A Two-Stage ADALINE for Harmonics and Interharmonics Measurement
Authors:	G. W. Chang;C. I Chen;Q. W. Liang
Keywords:	Index Terms—Adaptive linear element (ADALINE), frequency deviation, harmonics, interharmonics, nonlinear loads.
Date:	2009
Issue Date:	2010-04-15 05:42:28 (UTC+0)
Abstract:	Abstract—Harmonics and interharmonics may introduce operational problems in electrical and electronic equipment. Therefore, monitoring harmonics/interharmonics for improving the power quality is of importance for both electric utilities and their customers. In this paper, a cascaded two-stage adaptive linear element (ADALINE) structure for both harmonics and interharmonics measurement is proposed. In addition, a simple laboratory setup implemented by MATLAB and the dedicated hardware for measuring power signals is built to verify the performance of proposed method. Results are compared with those obtained by short-time Fourier transform and two other conventional ADALINE-based methods. It shows that the proposed method is with a better accuracy, even if the power frequency deviation and interharmonic components are present in the measured signal. The proposed method also can be adopted for harmonic/ interharmonic compensation devices in real time.
Relation:	IEEE Transactions on Industrial Electronics 56(6) : 2220-2228
Appears in Collections:	[Department of Computer Science and Information Engineering] Journal Artical

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