Results 31 to 40 of about 946 (192)

Interharmonics: Basic concepts and techniques for their detection and measurement [PDF]

open access: yes, 2020
The term interharmonics refer to those frequencies that are not integral harmonics of the supply fundamental frequency. Although international organizations defined the terminology and proposed measurement guidelines, difficulties still exist in its ...
Chun Li   +2 more
core  

Interharmonics from Grid-Connected PV Systems:Mechanism and Mitigation [PDF]

open access: yes, 2017
As the penetration level of grid-connected Photovoltaic (PV) systems increases, the power quality is one of the major concerns for system operators and the demands are becoming even stricter. The impact of interharmonics on the grid has been acknowledged
Sangwongwanich, Ariya; id_orcid   +7 more
core   +1 more source

Effect of Ripple Control on Induction Motors

open access: yesEnergies, 2023
One method for the remote management of electrical equipment is ripple control (RC), based on the injection of voltage interharmonics into the power network to transmit information.
Piotr Gnaciński   +4 more
doaj   +1 more source

A Study of the Effects of Time Aggregation and Overlapping within the Framework of IEC Standards for the Measurement of Harmonics and Interharmonics

open access: yesApplied Sciences, 2019
The increasing incorporation of power electronics and other non-linear loads, in addition to their energy advantages, also implies a poor power quality, especially as regards harmonic pollution.
Angel Arranz-Gimon   +3 more
doaj   +1 more source

A Review of Total Harmonic Distortion Factors for the Measurement of Harmonic and Interharmonic Pollution in Modern Power Systems

open access: yesEnergies, 2021
Harmonic distortion is one of the disturbances that most affects the quality of the electrical system. The widespread use of power electronic systems, especially power converters, has increased harmonic and interharmonic emission in a wide range of ...
Angel Arranz-Gimon   +3 more
doaj   +1 more source

Analytical Frameworks and Theories of Electric Power in Non‐Linear Circuits

open access: yesIET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
Based on the challenges of distorted currents and non‐linear components in modern power grids, this article reviews seminal electrical power theories that seek to generalize the traditional definitions of active, reactive, and apparent power. It provides a detailed analysis of their mathematical foundations, practical implementation, and validity.
Rafael Escudero, Luis Ibarra
wiley   +1 more source

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

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

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

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