Results 31 to 40 of about 215 (160)

Experimental Interharmonic Sensitivity Evaluation of LED Lamps Based on the Luminous Flux Flicker Model

open access: yesEnergies, 2022
LED lamps have gradually replaced other lighting sources and have become mainstream in the lighting industry. The research on interharmonic sensitivity affecting their lighting quality cannot be ignored. By deconstructing the lamp-eye-brain module in the
Hongtao Li   +3 more
doaj   +1 more source

Sources, Effects, and Modelling of Interharmonics [PDF]

open access: yesMathematical Problems in Engineering, 2014
Recently, the increasing use of power electronic systems and time‐variant nonlinear loads has brought number of power harmonics/interharmonics, and the power supply quality is therefore seriously threatened. The presence of interharmonics strongly poses more difficulties in modelling and measuring the distorted waveforms. Therefore, this paper reviews
openaire   +1 more source

Towards an EMC Coordination for Interharmonics in Public Low Voltage Networks

open access: yesIET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
Flicker in LED lamps caused by interharmonic distortion was identified as a new interference mechanism, which is not yet covered by the existing EMC coordination. Following the process for EMC coordination, the article starts from a detailed characterisation of the new interference mechanism.
Jan Meyer   +6 more
wiley   +1 more source

Effect of Interharmonics on Flicker of Fluorescent Lamps [PDF]

open access: yes2018 China International Conference on Electricity Distribution (CICED), 2018
In order to analyze the inter-harmonic affections on the voltage flicker, the relationship between the inter-harmonics and flicker analysis are carried out. In order to be able to accurately determine the level of inter-harmonics to make the electric light flicker, inter-harmonic-flicker limit curve drawing method based on the voltage flicker ...
Huiyan Cao   +5 more
openaire   +2 more sources

Monitoring and Suppression Strategies of the Interharmonic in the Grid-Connected Photovoltaic System: A Review

open access: yesEnergies
With the continuous advancement of the green and low-carbon transformation of energy structures in countries around the world, renewable energy sources such as solar energy are receiving increasingly widespread attention.
Mingxuan Mao   +5 more
doaj   +1 more source

Effects of Negative Sequence Voltage Subharmonics on Cage Induction Motors

open access: yesEnergies, 2022
In some power systems, voltage waveforms contain, apart from harmonics, interharmonics and subharmonics that are components of frequency less than or not an integer multiple of the fundamental frequency.
Piotr Gnaciński   +4 more
doaj   +1 more source

Estimation of Electric Power Quantities for Nonsinusoidal Conditions Based on Operating Point Fluctuations

open access: yesIET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper proposes an operating point fluctuations (OPF) framework to describe nonsinusoidal, nonstationary waveforms by modeling distortions as amplitude and phase fluctuations of a time‐varying fundamental component. Based on OPF, single‐phase and three‐phase power quantity expressions consistent with IEEE Std. 1459–2025 are derived under stationary
Yang Li   +3 more
wiley   +1 more source

Harmonic and Interharmonic Measurement Method Using Two-Fold Compound Convolution Windows and Zoom Fast Fourier Transform

open access: yesEnergies
With the rapidly increasing penetration of new energy resources, the power grid faces significant threats from harmonics. To measure and suppress these harmonics, numerous harmonic measurement methods have been proposed.
Xiangui Xiao   +5 more
doaj   +1 more source

STUDY OF ELECTROMAGNETIC TORQUE PULSATIONS IN PRECISION SERVO DRIVES WITH SINUSOIDAL PULSE-WIDTH MODULATION [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2019
Subject of Research.The paper considers the factors for reducing the pulsations of the electromagnetic torque in a precision instrumental electric drive with sinusoidal pulse-width modulation based on a permanent magnet synchronous motor.
V. S. Tomasov   +3 more
doaj   +1 more source

Impact of Solar Radiation on Luminaires and Energy Efficiency in Isolated Residential Photovoltaic Systems

open access: yesBuildings, 2023
This research centers on the implementation of photovoltaic systems in residential applications, coupled with battery-based energy storage, and evaluates their efficiency in generating energy, specifically for lighting in buildings.
Jaime Jalomo-Cuevas   +4 more
doaj   +1 more source

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