On the Use of Multi-Harmonic Least-Squares Fitting for THD Estimation in Power Quality Analysis

Ramos, Pedro M.; Janeiro, Fernando M.; Radil, Tomáö

doi:10.2478/v10178-012-0025-8

Cited by 4 publications

(2 citation statements)

References 14 publications

(16 reference statements)

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“…This page allows a residual analysis of the voltages useful for the detection of non-harmonic disturbances. Calling the page, a non-recursive multiharmonic fitting [44,45] is performed to estimate the fundamental and the harmonic components. The residual is obtained by subtracting the estimated waveform to the measured data record.…”

Section: Residual Analysis Windowmentioning

confidence: 99%

A Distributed Web-Based System for Temporal and Spatial Power Quality Analysis

Pasquale¹,

Giarnetti²,

Leccese³

et al. 2015

Power Quality Issues in Distributed Generation

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Abstract" distributed web-based system for temporal and spatial power quality analysis has been realized and tested. Connecting by internet local instruments able to perform high accuracy measurements in real time, the Power Quality information, locally measured, can be sent to a remote central server which aim is to plot them and stored the data for future analysis. The remote instruments have been realized, tested and placed in two Italian cities, Palermo and Rome, where actually work while the server works in Rome. The web application allows to select the single instrument and to show its stored PQ information.

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Section: Residual Analysis Windowmentioning

confidence: 99%

A Distributed Web-Based System for Temporal and Spatial Power Quality Analysis

Pasquale¹,

Giarnetti²,

Leccese³

et al. 2015

Power Quality Issues in Distributed Generation

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“…In particular, the parameters of the reference signal are estimated by the modified version of the multi-sine fitting algorithm [14]- [18] applied to the resulting signal.…”

Section: Introductionmentioning

confidence: 99%

Static Characterization of Arbitrary Waveform Generator based on Modified Multi- sine Fitting and Zero Crossing Detection Algorithms

Carnì¹

2017

JESTR

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The static characterization of the output section of the Arbitrary Waveform Generator (AWG) requires that its output signal must be digitalized by Analog to Digital Converter (ADC) with higher linearity and resolution than the device under test. In the literature, the problem of high resolution acquisition is translated to the simpler problem of low resolution and high sampling frequency acquisition of the resulting signal, difference between the AWG output signal and the sinusoidal reference signal, available at the output of differential amplifier.The research is devoted to improving the evaluation accuracy of the AWG output by taking into consideration the degradation causes arising from (i) the delay introduced by the differential amplifier, and (ii) the jitter and other noise sources affecting the detection of the Zero Crossing Time Sequence (ZCTS) in the resulting signal. In the paper a method is proposed based on the processing of the resulting signal, only, and the improved ZCTS detection. Numerical tests validate the proposed method.

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