NDLI: Improved utility harmonic impedance measurement based on robust independent component analysis and bootstrap check

Content Provider	IET Digital Library
Author	Chen, Feiyu Mao, Nanping Wang, Yang Wang, Ying Xiao, Xianyong
Abstract	In this study, a new method for utility harmonic impedance measurement based on robust independent component analysis (RICA) and bootstrap check is proposed. The RICA approach which adopts exact line search to seek the optimal step-size in iteration has better performance for short data records. At the same time, a bootstrap check technique to remove the singular solutions of this sort of independent component analyses methods is presented as well. This verification technique is performed through judging the dispersion degree of the estimates of the bootstrap samples which is quantified by the coefficient of variation. Based on the results of computer simulation and filed test, it is proved that the combination of the RICA approach with the bootstrap check technique can reduce the adverse impact of the background harmonic fluctuation and the singular solutions on impedance estimation effectively, and satisfactory measurement results can be acquired.
Starting Page	910
Ending Page	919
Page Count	10
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 5, Mar (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.1153
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-10-31
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Background Harmonic Fluctuation Bootstrap Check Technique Bootstrap Samples Electric Impedance Measurement Exact Line Search Harmonics Impedance And Admittance Measurement Impedance Estimation Improved Utility Harmonic Impedance Measurement Independent Component Analysis Independent Component Analysis Method Optimal Step-size Optimisation Technique Power Supply Quality Power System Harmonics RICA Approach Robust Independent Component Analysis Satisfactory Measurement Result Short Data Records Singular Solutions Statistics Verification Technique
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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