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Relevant bibliographies by topics / HARMONIC COMPONENT

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Journal articles

Academic literature on the topic 'HARMONIC COMPONENT'

Author: Grafiati

Published: 11 September 2023

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Journal articles on the topic "HARMONIC COMPONENT"

1

Yuan, Xiao Dong, Qun Li, Jin Hui, and Bin Chen. "Research on the Existence of Genuine Inter-Harmonic Components Based on the Component Appearance Rate." Advanced Materials Research 875-877 (February 2014): 1847–51. http://dx.doi.org/10.4028/www.scientific.net/amr.875-877.1847.

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The inter-harmonic spectrum of an electrical voltage or current from discrete Fourier transform can not only be caused by genuine inter-harmonic components, but can also be caused by other system disturbances. Therefore, the existence determination of genuine inter-harmonic s from the spectrum becomes the premise for further calculation of inter-harmonic parameters. From the theoretical perspective, this paper firstly analyzes and points out that the waveform difference among each cycle in the analysis window is the cause of the existence of inter-harmonic spectrum, and then presents a method

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2

Zhang, Run Han, Luo Quan Hu, Wei Fan, and Xiao Lin Liu. "Application of Wavelet Transform with Tunable Q-Factor to Analysis of Non-Stationary Harmonics." Applied Mechanics and Materials 526 (February 2014): 182–86. http://dx.doi.org/10.4028/www.scientific.net/amm.526.182.

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Harmonics of power system include steady and transient components, extraction and analysis of them can improve the power quality. Tunable Q-factor wavelet transform (TQWT), for which the Q-factor can be easily specified, is adopted to accomplish the extraction of non-stationary harmonic component from the noisy signal. The proposed method decomposes a signal into noise component and non-stationary harmonic component based on suitable Q-factor. Feasibility and effectiveness of the proposed method are verified by the simulation study.

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3

Mustafa, M. T. "Harmonic Morphisms Projecting Harmonic Functions to Harmonic Functions." Abstract and Applied Analysis 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/315757.

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For Riemannian manifoldsMandN, admitting a submersionϕwith compact fibres, we introduce the projection of a function via its decomposition into horizontal and vertical components. By comparing the Laplacians onMandN, we determine conditions under which a harmonic function onU=ϕ−1(V)⊂Mprojects down, via its horizontal component, to a harmonic function onV⊂N.

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4

He, Liyuan, Chuanwei Zhou, and Lanjiang Wu. "Current Harmonic Control Method of Wind Turbine Based on PIR Controller." Journal of Physics: Conference Series 2480, no. 1 (2023): 012006. http://dx.doi.org/10.1088/1742-6596/2480/1/012006.

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Abstract Wind power equipment technology is the basis for the development of wind power generation. Aiming at the problem that the traditional PI controller is difficult to control the AC component of the current in the DQ axis, resulting in a large number of current harmonics in the process of power generation, which seriously affects the efficiency of power generation. This paper proposes a current harmonic control method for wind turbines based on a PIR controller. The mathematical model of wind power generation is constructed based on the synchronous rotating coordinate system. The current

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5

Sadiq, Muhammad Arslan, Dr Nusrat Husain, Fawad Shaukat, et al. "Prominence of Filtering Techniques for Harmonics Mitigation in Advanced Power Electronics Systems." Vol 4 Issue 2 4, no. 2 (2022): 512–25. http://dx.doi.org/10.33411/ijist/2022040220.

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With the advancement in technology, non-linear loads, continue to increase, and the enigma of harmonics is getting more and more serious. The huge addition of electronic loads in power systems has formed the problem of harmonic generation that has resulted in many associated drawbacks. This paper aims to analyze the harmonics in advanced power electronics-based systems and describes a solution to mitigate them through two distinguished filtering techniques. A rigorous analysis is done concerning the generation of harmonic distortion through different types of loads and harmonic mitigation by e

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6

Su, Yu Xiang, Guo Ping Liu, Lin Li, and Xiao Qun Shen. "Improved Hilbert-Huang Transform Applied in Power Quality Detection in Ship Power System." Applied Mechanics and Materials 88-89 (August 2011): 365–72. http://dx.doi.org/10.4028/www.scientific.net/amm.88-89.365.

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In this paper, Hilbert-Huang Transform (HHT) and its improved method is introduced for detection and analysis of power quality in ship power system for the first time. This method is applied in detecting surge current and voltage interruption etc. of the ship power grid. Beginning-ending time, time-frequency, time-amplitude of the disturbance signal can be obtained accurately with HHT method. Mode mixing occurs when using empirical mode decomposition (EMD) to analyze harmonics, and consequently, all single harmonic components cannot be effectively decomposed. The improved HHT method based on F

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7

Fei, Zhenyan, Ming Lyu, Mariano Méndez, et al. "The Harmonic Component of the Millihertz Quasi-periodic Oscillations in 4U 1636–53." Astrophysical Journal 922, no. 2 (2021): 119. http://dx.doi.org/10.3847/1538-4357/ac2501.

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Abstract We studied the harmonics of the millihertz quasi-periodic oscillations (mHz QPOs) in the neutron star low-mass X-ray binary 4U 1636–53 using the Rossi X-ray Timing Explorer observations. We detected the harmonics of the mHz QPOs in 73 data intervals, with most of them in the transitional spectra state. We found that the ratio between the rms amplitude of the harmonic and that of the fundamental remains constant in a wide range of the fundamental frequency. More importantly, we studied, for the first time, the rms amplitude of the harmonics versus energy in 4U 1636–53 in the 2–5 keV ra

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8

Sasmoko, Priyo. "SIMULATOR GENERATOR HARMONIK." Gema Teknologi 16, no. 3 (2012): 146. http://dx.doi.org/10.14710/gt.v16i3.4713.

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Priyo Sasmoko, in this paper explain that the need of electric power recently progressively complex, not only the requirement of availability of electricity, but the quality of energy have become prime facie demand. Studies of electricity quality have been conducted by many experts, one of them is about harmonic. Harmonic represent waving current or tension which is tension distortion at electric power system mains so that can result unideal waveform. The study of harmonic required appliance or obyek which need to be checked. In this research Simulator Generator Harmonik is made a harmonic gen

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9

Louossi, Theodore, Fabrice Kwefeu Mbakop, Abdouramani Dadje, and Noel Djongyang. "Modeling of an Electrical Energy Switching System in Multisource Power Plants: The Case of Grid Connected Photovoltaic and Wind Power Systems." Journal of Renewable Energy 2022 (November 28, 2022): 1–15. http://dx.doi.org/10.1155/2022/9972334.

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This paper proposes a multisource power plant management strategy for the proposed structure. This power plant consists of photovoltaic, wind, and grid. The principle of this management strategy is based on the reference currents and defines two components of the current namely a harmonic component related to the harmonics contained in the load current and current called fundamental related to the fundamental of the load current. This proposed strategy allows the different renewable sources to supply the load partially or totally. The harmonic component performs the power quality function whil

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10

Alghamdi, Sultan, Hatem F. Sindi, Ahmed Al-Durra, et al. "Reduction in Voltage Harmonics of Parallel Inverters Based on Robust Droop Controller in Islanded Microgrid." Mathematics 11, no. 1 (2022): 172. http://dx.doi.org/10.3390/math11010172.

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In this article, a distributed control scheme to compensate for voltage harmonics in islanded microgrids is presented, where each distributed generation (DG) source has a primary control level and a secondary control level. In addition to the voltage and current control loops, the primary control level of DGs includes virtual impedance control loops in the main and harmonic components, which are responsible for dividing the power of the main component and the non-main component (harmonic) between the DGs of the microgrid, respectively. For coordinated operation between the inverters when facin

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