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Study on Harmonic Impedance Estimation and Harmonic Contribution Evaluation Index [PDF]

open access: yesIEEE Access, 2020
Harmonic impedance estimation and suitable evaluation index selection are the key steps of harmonic contribution evaluation. Most of the traditional harmonic impedance estimation methods are only applicable to the scenario, where the background harmonic ...
Ziteng Liu   +3 more
doaj   +2 more sources

Harmonic Contribution Quantification for Multiple Harmonic Sources Based on Minimum Impedance Fluctuation

open access: yesIEEE Access, 2023
The background harmonic fluctuation has a significant impact on the results of harmonic contribution quantification. However, the existing methods, especially those applied for multiple harmonic sources scenario, usually assume that the background ...
Xin Tang   +7 more
doaj   +2 more sources

Estimation of harmonic impedance and harmonic contribution with harmonic complex power in the absence of harmonic phase angle

open access: yesIET Generation, Transmission & Distribution, 2023
Estimation of harmonic impedances and harmonic contributions is beneficial to harmonic control, and harmonic phasors data is necessary for the existing estimation methods.
Hongru Zheng   +4 more
doaj   +2 more sources

Multi-Harmonic Sources Harmonic Contribution Determination Based on Data Filtering and Cluster Analysis [PDF]

open access: yesIEEE Access, 2019
Accurately determining power consumer harmonic contribution determination is an effective method to solve power quality disputes and alleviate harmonic pollution of power grids.
Haoyuan Sha   +5 more
doaj   +2 more sources

Unconventional high-harmonic generation in resonant membrane metasurfaces [PDF]

open access: yesNature Communications
High-harmonic generation (HHG) in solids has rapidly emerged as a promising platform for creating compact attosecond sources and probing ultrafast electron dynamics. Resonant metasurfaces provide essential features for harmonic generation, increasing its
Pavel Tonkaev   +7 more
doaj   +2 more sources

Experimental assessment of harmonic contributions using a ternary pulse sequence [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2021
Harmonic contributions of utility and customer may feature significant variations due to network switchings and changing operational modes. In order to correctly define the impacts on the grid voltage distortion the frequency dependent impedance
Bulycheva Evgeniia, Yanchenko Sergey
doaj   +1 more source

Real-time harmonic identification under varying grid conditions [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2021
One of the challenges of the power quality management is a need for reliable harmonic identification in grids with multiple non-linear loads. This paper proposes a novel method to accurately determine time-varying harmonic contributions of non ...
Bulycheva Evgeniia A.   +1 more
doaj   +1 more source

Harmonic indices for continuous evaluation of consumer's harmonic contribution [PDF]

open access: yesIET Generation, Transmission & Distribution, 2020
Nowadays, the determination of the contribution of individual customers to the harmonic pollution of an electric power network is very essential for power quality improvement. In this study, four new indices are introduced to investigate the effect of harmonic contribution (HC) of the pollutant customers for an arbitrary time period without any access ...
Mahdi Tadayon   +3 more
openaire   +1 more source

Harmonic Contribution Assessment Based on the Random Sample Consensus and Recursive Least Square Methods

open access: yesEnergies, 2022
This paper deals with a method of quantifying the harmonic contribution of each harmonic source to system voltage distortion. Assessing the harmonic contribution of individual harmonic sources is essential for mitigating and managing system harmonic ...
Jong-Il Park, Chang-Hyun Park
doaj   +1 more source

A Novel Method for Assessing the Contribution of Harmonic Sources to Voltage Distortion in Power Systems

open access: yesIEEE Access, 2020
This paper presents a method for evaluating the harmonic contributions of multiple harmonic sources to voltage distortion at the point of common coupling (PCC).
Jong-Il Park   +3 more
doaj   +1 more source

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