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Journal articles on the topic 'Harmonic sources'

Author: Grafiati

Published: 4 June 2021

Last updated: 8 February 2022

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1

Yacamini, R. "Power system harmonics. Part 1: Harmonic sources." Power Engineering Journal 8, no. 4 (1994): 193–98. http://dx.doi.org/10.1049/pe:19940409.

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2

Thuyen, Chau Minh, Nguyen Hoai Thuong, and Truong Khac Tung. "Integrated compensation model using a three-phase neutral point clamped inverter." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 5 (2020): 5074. http://dx.doi.org/10.11591/ijece.v10i5.pp5074-5082.

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Normally, when research on active compensation models, previous studies only assumed that the source of harmonics is nonlinear load. The nonlinear load here is fixed and balanced, the supply voltage is considered ideal, i.e. the three-phase source is balanced and there is no distortion. However, in reality, the above assumption is difficult to achieve. Therefore, this paper aims to design an integrated compensation model for different types of harmonic sources. The types of harmonic sources considered here include: harmonic sources generated from nonlinear load and source. The requirement of t

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3

Howe, William, and Matthew Rylander. "Estimating Future Grid Harmonics Due to Changing Harmonic Sources." Renewable Energy and Power Quality Journal 1, no. 15 (2017): 640–45. http://dx.doi.org/10.24084/repqj15.418.

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4

Vovos, Panagis N., and Konstantinos G. Georgakas. "Multipurpose Power Converter for Non-Grid-Connected Microsystems." International Journal of Emerging Electric Power Systems 16, no. 2 (2015): 165–79. http://dx.doi.org/10.1515/ijeeps-2014-0129.

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Abstract The aim of this paper is to present a multipurpose converter, appropriate for non-grid-connected microsystems, which are prone to harmonic distortion. The converter suppresses harmonics by injecting mirror harmonics in the modulation stage. An important property is that it continuously monitors and significantly reduces the harmonic content without the use of active or passive low-frequency filters. This is under constant switching frequency, no matter if the harmonics are mainly created by the source, the loads or even its own operation. The converter is regulating output voltage usi

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5

Tan, Meng, Yaqiong Li, Xiaohong Geng, and Jun Wen. "Quantifying the harmonic impact for multi-harmonic sources." Journal of Physics: Conference Series 1303 (August 2019): 012080. http://dx.doi.org/10.1088/1742-6596/1303/1/012080.

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6

Chen, Sen, and Sheng-Nian Luo. "Small-angle scattering of polychromatic X-rays: effects of bandwidth, spectral shape and high harmonics." Journal of Synchrotron Radiation 25, no. 2 (2018): 496–504. http://dx.doi.org/10.1107/s1600577517018355.

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Polychromatic X-ray sources can be useful for photon-starved small-angle X-ray scattering given their high spectral fluxes. Their bandwidths, however, are 10–100 times larger than those using monochromators. To explore the feasibility, ideal scattering curves of homogeneous spherical particles for polychromatic X-rays are calculated and analyzed using the Guinier approach, maximum entropy and regularization methods. Monodisperse and polydisperse systems are explored. The influence of bandwidth and asymmetric spectra shape are exploredviaGaussian and half-Gaussian spectra. Synchrotron undulator

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7

Liang, Chen, Mei Yang, Wei Zheng, and Yong Zhi. "Simulation Analysis on Harmonics Pollution of Large-Scale Wind System Accessed to Grid." Advanced Materials Research 997 (August 2014): 795–99. http://dx.doi.org/10.4028/www.scientific.net/amr.997.795.

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The harmonic sources model of wind grid accessed to power system is established by measurement and statistical methods based on the large scale wind system planning of Gansu jiuquan area. The harmonic power flow is analysed under different operation modes in power system. The harmonic pollution trend of the million kilowatt wind accessed to power system at present stage and 2015 are analysed and compared, the calculation results show that the harmonics pollution is most serious at the point which wind power accessed to the network, the harmonic pollution degree is damping along the line. The f

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8

Zhao, Jinshuai, Honggeng Yang, Xiaoyang Ma, and Fangwei Xu. "Evaluation of Harmonic Contributions for Multi Harmonic Sources System Based on Mixed Entropy Screening and an Improved Independent Component Analysis Method." Entropy 22, no. 3 (2020): 323. http://dx.doi.org/10.3390/e22030323.

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Evaluating the harmonic contributions of each nonlinear customer is important for harmonic mitigation in a power system with diverse and complex harmonic sources. The existing evaluation methods have two shortcomings: (1) the calculation accuracy is easily affected by background harmonics fluctuation; and (2) they rely on Global Positioning System (GPS) measurements, which is not economic when widely applied. In this paper, based on the properties of asynchronous measurements, we propose a model for evaluating harmonic contributions without GPS technology. In addition, based on the Gaussianity

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9

Venkatesh, S. "Design and Implementation of Grid Connected Solar Inverter using Adaptive Harmonic Elimination Technique." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (2021): 5123–29. http://dx.doi.org/10.22214/ijraset.2021.36082.

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Our project mainly focuses work a lot being carried out in the ﬁeld of distributed generation. For the electric grid, so Many distributed generation systems are being made. At this time when the non-renewable sources of energy such as oil, coal, etc are very fast disappearing, a study of distributed generation systems (DGs) and Establishing of such systems using renewable sources of energy becomes very important. we have seen several major problems will happen, when harmonic content of the current is flows into the grid, like this issue several issues are going to meet. When a Distribution Gen

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10

Peng, F. Z. "Harmonic sources and filtering approaches." IEEE Industry Applications Magazine 7, no. 4 (2001): 18–25. http://dx.doi.org/10.1109/2943.930987.

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11

Danes, Leandro, and Andrea Vacca. "A Tandem Axial-Piston Unit Based Strategy for the Reduction of Noise Sources in Hydraulic Systems." Energies 13, no. 20 (2020): 5377. http://dx.doi.org/10.3390/en13205377.

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This article presents a novel passive fluid borne noise source reduction strategy, based on tandem axial-piston unit indexing with the usage of symmetric lines. The strategy consists of setting the phase between the two synchronous units to accomplish destructive interference in targeted unit harmonics. A strategy capable of achieving destructive interference in all odd harmonics is investigated first analytically and then confirmed by a simulation study. Experiments on the proposed strategy confirmed its effectiveness at the first and third pump fundamental harmonics, and pressure ripple redu

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12

Inoue, Ichiro, Taito Osaka, Kenji Tamasaku, et al. "An X-ray harmonic separator for next-generation synchrotron X-ray sources and X-ray free-electron lasers." Journal of Synchrotron Radiation 25, no. 2 (2018): 346–53. http://dx.doi.org/10.1107/s160057751800108x.

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An X-ray prism for the extraction of a specific harmonic of undulator radiation is proposed. By using the prism in a grazing incidence geometry, the beam axes of fundamental and harmonics of undulator radiation are separated with large angles over 10 µrad, which enables the selection of a specific harmonic with the help of apertures, while keeping a high photon flux. The concept of the harmonic separation was experimentally confirmed using X-ray beams from the X-ray free-electron laser SACLA.

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13

Jiang, Shan, Min You Chen, Hao Lin, Zhi Sheng Lv, and Ang Fu. "An Identification Method of Harmonic Source in the Power System Based on Independent Component Analysis." Applied Mechanics and Materials 380-384 (August 2013): 4088–93. http://dx.doi.org/10.4028/www.scientific.net/amm.380-384.4088.

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In this research, an identification method of harmonic source, based on independent component analysis, was proposed. An unknown harmonic source in the equivalent circuit of power system was regarded as the signal source in the independent component analysis. The known voltage and current of PCC were taken as observed quantities. The independent component analysis and the optimization algorithm were utilized to construct a matrix that could linearly transform voltage and current of PCC into mutually independent signal sources. The harmonic impedance and harmonic source of both the user side an

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14

Buccella, Concettina, Maria Gabriella Cimoroni, and Carlo Cecati. "General Formula for SHE Problem Solution." Energies 13, no. 14 (2020): 3740. http://dx.doi.org/10.3390/en13143740.

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This paper considers cascaded H-bridges multilevel inverters with 2 n dc sources, n integer, n > 0 and proposes a new general formula to compute those 2 n switching angles capable of eliminating n + 1 harmonics and their respective multiples from the output voltage waveform. The proposed procedure uses only scalar products and avoids linear systems, therefore it has a low computational cost. Computed angles do not depend on modulation index, moreover, voltage sources vary linearly. A mathematical proof is given to validate the formula. Three-phase implementations eliminate or mitigate a sig

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15

Zhang, Yi, Youran Wang, Junyu Guo, and Zhenguo Shao. "A Method for Responsibility Division of Multi-Harmonic Sources Based on Canonical Correlation Analysis." Symmetry 13, no. 8 (2021): 1451. http://dx.doi.org/10.3390/sym13081451.

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The variable background harmonic data and incomplete phasor information make multi-harmonic source responsibility division in three-phase symmetrical power system a significant challenge. In this paper, a background harmonic data selection method based on canonical correlation analysis is proposed to deal with multi-harmonic source responsibility division without phasor information. Firstly, the canonical correlation coefficient between harmonic voltage and harmonic current is used to characterize the fluctuations of background harmonic voltage. Then, the sliding window method is adopted to se

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16

Yamayee, Zia A. "Stochastic modelling of harmonics due to existing and prospective harmonic sources." International Journal of Electrical Power & Energy Systems 10, no. 2 (1988): 134–36. http://dx.doi.org/10.1016/0142-0615(88)90026-9.

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17

Yun, Yu Xin, Min Liu, and Hai Yan Yuan. "Harmonic Analysis of Yindong ±660kV HVDC Transmission System." Applied Mechanics and Materials 448-453 (October 2013): 2049–53. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.2049.

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Based on PSCAD/EMTDC simulation platform, this paper analyses the harmonics caused by the process of rectifier and inverter and DC bias of transformer in Yindong ±660kV HVDC transmission system. The results indicate that, characteristic harmonics of 660kV HVDC system AC bus give priority to 12k±1 time harmonics and bring serious influence to the AC system of the rectifier and converter station; the characteristic harmonics of DC lines are mainly about 12k time and the voltage ripple factor is in the specified scope; both the odd and even harmonic components are increasing significantly under D

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18

Popov, I. P. "Sources of Harmonic Force and Speed in Mechatronic Automatic Systems." Mekhatronika, Avtomatizatsiya, Upravlenie 22, no. 4 (2021): 208–16. http://dx.doi.org/10.17587/mau.22.208-216.

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To study resonance and near-resonance phenomena, a symbolic (complex) method was used, which makes it possible to significantly increase productivity, simplify and formalize mathematical transformations. Parallel and sequential connections of elements of a mechanical system with a source of harmonic force or a source of harmonic speed as a source of external mechanical harmonic action are considered. The analytical descriptions of resonance in theoretical mechanics courses correspond to parallel connection. There are devices, in a satisfactory approximation, capable of performing the functions

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19

Islam, Syed M. "Characteristic and Non-Characteristic Harmonics, Harmonic Cancellations and Relevant International Standards in Variable Speed Drives." Sultan Qaboos University Journal for Science [SQUJS] 7, no. 1 (2002): 123. http://dx.doi.org/10.24200/squjs.vol7iss1pp123-136.

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This paper will present a review of characteristic harmonics in both single phase and three phase drive front end rectifiers, discuss recent research findings in identifying sources and production of non-characteristic harmonics and amplification of harmonic levels when the front end rectifiers are fed from non-ideal supply conditions. Significant amount of triplens may be generated due to unbalances in utility supply voltage wave form and anticipated harmonic levels may vary widely. The paper will also discuss international harmonic standards such as the AS 2279, IEEE 519, and IEC 61000 serie

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20

Polikarpov, Maxim, Irina Snigireva, and Anatoly Snigirev. "X-ray harmonics rejection on third-generation synchrotron sources using compound refractive lenses." Journal of Synchrotron Radiation 21, no. 3 (2014): 484–87. http://dx.doi.org/10.1107/s1600577514001003.

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A new method of harmonics rejection based on X-ray refractive optics has been proposed. Taking into account the fact that the focal distance of the refractive lens is energy-dependent, the use of an off-axis illumination of the lens immediately leads to spatial separation of the energy spectrum by focusing the fundamental harmonic at the focal point and suppressing the unfocused high-energy radiation with a screen absorber or slit. The experiment was performed at the ESRF ID06 beamline in the in-line geometry using an X-ray transfocator with compound refractive lenses. Using this technique the

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21

Abbas, Ahmed S., Ragab A. El-Sehiemy, Adel Abou El-Ela, et al. "Optimal Harmonic Mitigation in Distribution Systems with Inverter Based Distributed Generation." Applied Sciences 11, no. 2 (2021): 774. http://dx.doi.org/10.3390/app11020774.

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In recent years, with the widespread use of non-linear loads power electronic devices associated with the penetration of various renewable energy sources, the distribution system is highly affected by harmonic distortion caused by these sources. Moreover, the inverter-based distributed generation units (DGs) (e.g., photovoltaic (PV) and wind turbine) that are integrated into the distribution systems, are considered as significant harmonic sources of severe harmful effects on the system power quality. To solve these issues, this paper proposes a harmonic mitigation method for improving the powe

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22

Kumar Dash, Srikanta, Byamakesh Nayak, and Jiban Ballav Sahu. "Selective Harmonic Elimination of an Eleven Level Inverter Using Whale Optimization Technique." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 4 (2018): 1944. http://dx.doi.org/10.11591/ijpeds.v9.i4.pp1944-1951.

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Reduction of total harmonic distortion in multilevel inverters is a difficult optimization problem that includes nonlinear transcendent equations having more than one local minima.This paper deals with the harmonic elimination of cascaded multilevel inverter with equal D.C. sources using a new optimization technique. The objective of this paper is to find the best combination of switching angles to minimize the lower order harmonics and the total harmonic distortion is reduced. For this purpose, a new optimization techniques i.e. whale optimization technique is considered.This algorithm is app

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23

HERGOTT, J. F., P. SALIÈRES, H. MERDJI, et al. "XUV interferometry using high-order harmonics: Application to plasma diagnostics." Laser and Particle Beams 19, no. 1 (2001): 35–40. http://dx.doi.org/10.1017/s0263034601191056.

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In this paper, we present and compare the two different XUV interferometric techniques using high-order harmonics that have been developed so far. The first scheme is based on the interference between two spatially separated phase-locked harmonic sources while the second uses two temporally separated harmonic sources. These techniques have been applied to plasma diagnostics in feasibility experiments where electron densities up to a few 1020 e−/cm3 have been measured with a temporal resolution of 200 fs. We present the main characteristics of each technique and discuss their respective potenti

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24

Feng, Li-Qiang, and Hang Liu. "Water window attosecond sources generation by using the multi-cycle time-delay two circularly polarized pulses." International Journal of Modern Physics B 29, no. 23 (2015): 1550170. http://dx.doi.org/10.1142/s0217979215501702.

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In this paper, a promising scheme is proposed to generate the water window isolated attosecond pulses from the high-order harmonics by using the multi-cycle time-delay two circularly polarized pulses. The results show that with the introduction of delay time of the two pulses, not only the harmonic cutoff is extended, but also the modulation on the harmonic spectrum is suppressed. Especially for the [Formula: see text] nm, [Formula: see text] nm and the [Formula: see text] nm two cases, a 341 eV and a 502 eV supercontinua including the whole water window region are obtained. Finally, by proper

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25

Ganeev, Rashid A., and Hiroto Kuroda. "High-Order Harmonics Generation in Atomic and Molecular Zinc Plasmas." Photonics 8, no. 2 (2021): 29. http://dx.doi.org/10.3390/photonics8020029.

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We demonstrate the variations of single harmonic resonance enhancement during high-order harmonics generation in zinc-containing atomic and molecular species at the conditions of single-color and two-color pumps of laser-induced plasmas by applying different laser sources. We show how selenides of this metal notably modify the enhancement of single (9th, 15th or 16th) harmonic compared with purely atomic zinc plasmas. The variations of single harmonic enhancement are demonstrated using fixed (806 nm) and tunable (1280–1440 nm) radiation.

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26

YUKIHIRA, Kenji. "Mistaken Belief about Harmonic Current Sources." Journal of the Institute of Electrical Engineers of Japan 137, no. 5 (2017): 308–9. http://dx.doi.org/10.1541/ieejjournal.137.308.

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27

Zerne, Raoul, Carlo Altucci, Marco Bellini, et al. "Phase-Locked High-Order Harmonic Sources." Physical Review Letters 79, no. 6 (1997): 1006–9. http://dx.doi.org/10.1103/physrevlett.79.1006.

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28

Adalbjornsson, Stefan I., Ted Kronvall, Simon Burgess, Kalle Astrom, and Andreas Jakobsson. "Sparse Localization of Harmonic Audio Sources." IEEE/ACM Transactions on Audio, Speech, and Language Processing 24, no. 1 (2016): 117–29. http://dx.doi.org/10.1109/taslp.2015.2497798.

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29

Jewell, W., W. L. Miller, and T. Casey. "Filtering dispersed harmonic sources on distribution." IEEE Transactions on Power Delivery 15, no. 3 (2000): 1045–51. http://dx.doi.org/10.1109/61.871373.

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30

de Oliveira, Janaína Goncalves, Juan de Santiago, and Pedro Machado de Almeida. "Harmonic Mitigation in a Coreless Double-Wound Flywheel Machine: Experimental Verification." International Journal of Emerging Electric Power Systems 16, no. 3 (2015): 243–51. http://dx.doi.org/10.1515/ijeeps-2014-0141.

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Abstract This paper aims at analyzing harmonics and interharmonics present in a flywheel-based driveline developed at Uppsala University. The flywheel machine is a permanent magnet synchronous machine with two sets of windings in the stator, with a Wye–Wye connection as standard. Different sources of harmonic distortion have been evaluated. Flywheel machine simulations are performed in finite element method (FEM) (Comsol) and experimental verifications are presented. Several methods for harmonic mitigation have been evaluated. The driveline suffers almost exclusively from second-order harmonic

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31

Jopri, M. H., A. R. Abdullah, T. Sutikno, M. Manap, M. R. Ab Ghani, and A. S. Hussin. "A Diagnostic Analytics of Harmonic Source Signature Recognition by Using Periodogram." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 6 (2018): 5399. http://dx.doi.org/10.11591/ijece.v8i6.pp5399-5408.

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<span lang="EN-GB">This paper presents a diagnostic analytics of harmonic source signature recognition of rectifier and inverter-based load in the distribution system with single-point measurement at the point of common coupling by utilizing Periodogram. Signature recognition pattern is used to distinguish the harmonic sources accurately by obtaining the distribution of harmonic and interharmonic components and the harmonic contribution changes. This is achieved by using the significant signature recognition of harmonic producing load obtained from analysing the harmonic contribution cha

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32

B R, Madhu, Dinesh MN, and Ravitheja BM. "Design of shunt hybrid active power filter (SHAPF) to reduce harmonics in AC side due to Non-linear loads." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 4 (2018): 1926. http://dx.doi.org/10.11591/ijpeds.v9.i4.pp1926-1936.

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<p>The quality of power is a major concern because of harmonics in the lines due to various sources. Passive filters have been used to eliminate the specific harmonics. In this paper shunt hybrid active power filter which consists of shunt active filter and shunt passive filter is designed to reduce harmonics in source side for non linear loads. The shunt passive filter includes a tuned RLC circuit that behaves like a band-pass filter for a particular harmonic content. The shunt active filter is a VSI that produces reverse harmonic current based on Clarke’s transformation. This paper pre

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33

Lynes, JA. "Fourier components of cylindrical illuminance." Lighting Research & Technology 51, no. 8 (2019): 1224–36. http://dx.doi.org/10.1177/1477153519837317.

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Fourier analysis is applied to the profile of illuminance around the curved surface of a small cylinder, due to one, two and three point sources of light and due to an extended source. This reveals only one odd harmonic, whose amplitude is equal to half that of the illumination vector. Lighting can also generate a diminishing series of even harmonics. The lighting at any point in open space can be expressed in terms of the harmonics of illuminance around three mutually perpendicular cylinders. Visual discomfort is often associated with the presence of even harmonics. The photometry of cylindri

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34

Li, Xiao Hao, Ying Huang, and Ming Xu Ma. "Harmonic Vibration Control Synchronization Analysis of Nonlinear System Based on Flux Linkage Estimate." Applied Mechanics and Materials 329 (June 2013): 443–47. http://dx.doi.org/10.4028/www.scientific.net/amm.329.443.

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Aimed to the nonlinear harmonic vibration synchronization system which driven by two exciting sources that, the dynamic model of the nonlinear vibration system has been established. According to the electromagnetic driving characteristics of the asynchronous motor that used to be exciting source, and based on the analysis result of the dynamic model, the two exciting sources flux linkage equations and output torque equations have been established in the paper. And the current control regulation model and flux linkage estimate model of the two exciting sources have been derived also. By numeric

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35

Zhang, Luyao, Yinghui Zheng, Guicun Li, et al. "Bright High-Order Harmonic Generation around 30 nm Using Hundred-Terawatt-Level Laser System for Seeding Full Coherent XFEL." Applied Sciences 8, no. 9 (2018): 1446. http://dx.doi.org/10.3390/app8091446.

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In the past few years, the laser wakefield acceleration (LWFA) electron is a hot topic. One of its applications is to produce soft X-ray free-electron laser (XFEL). During this process, high harmonic generation (HHG) is a potential seed. To decrease the timing jitter between LWFA and HHG, it is better for them to come from the same laser source. We have experimentally investigated bright high-order harmonic generation with a 200-terawatt (TW)/1-Hz Ti: Sapphire laser system. By using the loosely focused method and optimizing the phase-matching conditions, we have obtained bright high-order harm

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36

Meriläinen, Esa. "Comparative Measurements on Loudspeaker Distortion: Current vs. Voltage Control." Archives of Acoustics 42, no. 1 (2017): 71–81. http://dx.doi.org/10.1515/aoa-2017-0008.

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Abstract Modulation and harmonic distortion produced by ordinary moving-coil direct-radiator drive units are measured under current control and voltage control. A realistic two-tone test signal is used to investigate the detrimental effect of the voice coil electromotive forces on the voltage-to-current conversion that is critical with voltage control. Dramatic improvements in distortion performance are obtained with current control. Current nonlinearities in voltage-controlled speakers are shown to be the dominant source of modulation and odd harmonic distortions at signal frequencies above t

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37

Li, Bing Jun, Su Quan Zhou, and Xiao Xiang Lun. "A Harmonic Source Location Method Based on PMU Measurements in Distribution Network." Applied Mechanics and Materials 775 (July 2015): 409–14. http://dx.doi.org/10.4028/www.scientific.net/amm.775.409.

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It is of great importance to identify the location of the harmonic sources for the harmonic governance in the power system. Applied with optimal measurement placement (OMP) and harmonic state estimation (HSE), this paper presents a novel process based on PMU measurements to locate the harmonic sources in the distribution network. Considering the cost and the observability, the OMP can provide a scheme of the measurement placement with the minimum number of PMU measurements. In order to simplify the HSE equation, the measured data are converted to the form of voltage by the method proposed in t

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38

Li, Yi, R. Liqiang Feng, and Yan Qiao. "Improvement of harmonic spectra from superposition of initial state driven by homogeneous and inhomogeneous combined field." Canadian Journal of Physics 98, no. 2 (2020): 198–209. http://dx.doi.org/10.1139/cjp-2019-0002.

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A larger harmonic cutoff with a higher harmonic yield is a necessary requirement for producing intense ultrashort extreme ultraviolet (XUV) and X-ray sources. In this paper, we present a potential method to improve the harmonic cutoff and harmonic yield from the superposition of initial states in the He atom driven by the low-intensity homogeneous and inhomogeneous combined field. The results can be separated into two parts, that is, (i) the extension of harmonic cutoff via the optimization of three-color homogeneous and inhomogeneous field (covering the carrier envelope phase, delay time, int

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39

Jopri, Mohd Hatta, Abdul Rahim Abdullah, Mustafa Manap, M. Badril Nor Shah, Tole Sutikno, and Jingwei Too. "Linear discriminate analysis and k-nearest neighbor based diagnostic analytic of harmonic source identification." Bulletin of Electrical Engineering and Informatics 10, no. 1 (2021): 171–78. http://dx.doi.org/10.11591/eei.v10i1.2686.

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The diagnostic analytic of harmonic source is crucial research due to identify and diagnose the harmonic source in the power system. This paper presents a comparison of machine learning (ML) algorithm known as linear discriminate analysis (LDA) and k-nearest neighbor (KNN) in identifying and diagnosing the harmonic sources. Voltage and current features that estimated from time-frequency representation (TFR) of S-transform analysis are used as the input for ML. Several unique cases of harmonic source location are considered, whereas harmonic voltage (HV) and harmonic current (HC) source type-lo

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40

Bal, Guillaume, and François Monard. "Inverse Transport with Isotropic Time-harmonic Sources." SIAM Journal on Mathematical Analysis 44, no. 1 (2012): 134–61. http://dx.doi.org/10.1137/11083397x.

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41

Pessentheiner, Hannes, Martin Hagmuller, and Gernot Kubin. "Localization and Characterization of Multiple Harmonic Sources." IEEE/ACM Transactions on Audio, Speech, and Language Processing 24, no. 8 (2016): 1348–63. http://dx.doi.org/10.1109/taslp.2016.2556282.

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42

Hiyama, T., M. S. A. A. Hammam, and T. H. Ortmeyer. "Distribution system modeling with distributed harmonic sources." IEEE Transactions on Power Delivery 4, no. 2 (1989): 1297–304. http://dx.doi.org/10.1109/61.25617.

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43

Hiyama, T., M. S. A. A. Hammam, and Thomas H. Ortmeyer. "Distribution System Modeling with Distributed Harmonic Sources." IEEE Power Engineering Review 9, no. 4 (1989): 91. http://dx.doi.org/10.1109/mper.1989.4310632.

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44

Makram, Elham B., Lynna Setzer, and Srinivas Varadan. "Effects of harmonic sources on customer loads." Electric Power Systems Research 29, no. 1 (1994): 51–55. http://dx.doi.org/10.1016/0378-7796(94)90048-5.

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Lin, Ruixing, Lin Xu, and Xian Zheng. "A Method for Harmonic Sources Detection based on Harmonic Distortion Power Rate." IOP Conference Series: Materials Science and Engineering 322 (March 2018): 072038. http://dx.doi.org/10.1088/1757-899x/322/7/072038.

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Kalyuzhniy, D. "IDENTIFICATION AND EVALUATION OF HARMONIC VOLTAGE SOURCES IN POWER SUPPLY SYSTEMS." Municipal economy of cities 1, no. 161 (2021): 157–62. http://dx.doi.org/10.33042/2522-1809-2021-1-161-157-162.

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Non-sinusoidal voltage in power supply systems leads to economic losses that need to be distributed and compensated. This problem is solved on the basis of the problem of identification and evaluation of the influence of voltage distortion sources. To date, existing methods for identifying and assessing the impact of harmonic voltage sources have significant limitations of practical implementation. This is due to their basic mathematical model and local approach to measuring the parameters of the network. In the given research the new mathematical model of identification and an estimation of h

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Ivry, P. M., O. A. Oke, D. W. P. Thomas, and M. Sumner. "Predicting Harmonic Distortion of Multiple Converters in a Power System." Journal of Electrical and Computer Engineering 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/7621413.

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Various uncertainties arise in the operation and management of power systems containing Renewable Energy Sources (RES) that affect the systems power quality. These uncertainties may arise due to system parameter changes or design parameter choice. In this work, the impact of uncertainties on the prediction of harmonics in a power system containing multiple Voltage Source Converters (VSCs) is investigated. The study focuses on the prediction of harmonic distortion level in multiple VSCs when some system or design parameters are only known within certain constraints. The Univariate Dimension Red

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Abd Halim, Wahidah, Tengku Noor Ariana Tengku Azam, Komathi Applasamy, and Auzani Jidin. "Selective Harmonic Elimination Based on Newton-raphson Method for Cascaded H-bridge Multilevel Inverter." International Journal of Power Electronics and Drive Systems (IJPEDS) 8, no. 3 (2017): 1193. http://dx.doi.org/10.11591/ijpeds.v8.i3.pp1193-1202.

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<span lang="EN-US">Multilevel inverters are emerging as the new breed of power converter options for high power applications. They typically synthesis the staircase voltage waveform (from several dc sources) which reduced harmonic content. This paper presents a simple selective harmonic elimination (SHE) modulation for single-phase cascaded H-bridge (CHB) multilevel inverter. The optimum switching angle of the transcendental equations describing the fundamental and harmonic components is solved by means of the Newton-Raphson (NR) method. The proposed SHE scheme is performed through simul

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Shen, Hong, Fan Yang, Ahmed Abu-Siada, and Zhao Liu. "A New Control Strategy for Active Power Filter." Energies 12, no. 21 (2019): 4099. http://dx.doi.org/10.3390/en12214099.

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The significant increase in electronic devices has resulted in serious harmonic pollutions in electricity grids. In addition, due to the resonance of the system capacitance and inductance, the harmonic current may be amplified dramatically when it goes through the transmission line which is harmful to the normal operation of electrical equipment. To suppress the voltage and current harmonics resonance, many control strategies of active power filter (APF) are proposed. Nevertheless, these strategies cannot attenuate the amplified harmonic voltage and current due to resonance. In this paper, the

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Khan, Reyyan Ahmad, Muhammad Noman Ashraf, and Woojin Choi. "A Harmonic Compensation Method Using a Lock-In Amplifier under Non-Sinusoidal Grid Conditions for Single Phase Grid Connected Inverters." Energies 14, no. 3 (2021): 597. http://dx.doi.org/10.3390/en14030597.

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The power quality of grid-connected inverters (GCIs) is attracting a lot of attention as the number of distributed generation systems with renewable energy sources are increased. It is well known that the harmonics present in the grid have a lot of detrimental effects on the equipment and devices connected to a power system network such as heating and derating. These effects lead to problems in terms of safety and lifespan. Therefore, harmonic standards such as IEEE 519 and P1547 suggest that GCIs should achieve total harmonic distortion (THD) of the output current that is less than 5%. Howeve

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