Results 11 to 20 of about 201 (163)

A SVD-Based Synchrophasor Estimator for P-Class PMUs With Improved Immune From Interharmonic Tones

open access: yesIEEE Access, 2021
The increasing use of renewable generation, power electronic devices, and nonlinear loads in power systems brings more severe interharmonic tones to the measurand, which can increase estimation errors of P-class PMUs, cause misoperation of protection ...
Dongfang Zhao   +5 more
doaj   +1 more source

Interharmonics: Theory and Modeling

open access: yesIEEE Transactions on Power Delivery, 2007
Some of the most remarkable issues related to interharmonic theory and modeling are presented. Starting from the basic definitions and concepts, attention is first devoted to interharmonic sources. Then, the interharmonic assessment is considered with particular attention to the problem of the frequency resolution and of the computational burden ...
A. Testa   +20 more
openaire   +6 more sources

Interharmonic Analysis Model of Photovoltaic Grid-connected System with Extended Dynamic Phasors

open access: yesJournal of Modern Power Systems and Clean Energy, 2021
The interactions between randomly fluctuating power outputs from photovoltaic (PV) at the DC side and background voltage distortions at the AC side could generate interharmonics in the PV grid-connected system (PVGS).
Qing Zhong   +5 more
doaj   +1 more source

Development of interharmonics identification using enhanced-FFT algorithm

open access: yesThe Journal of Engineering, 2017
The fast Fourier transform (FFT) is a mostly used tool to measure power system harmonics. FFT, however, is not applicable to analyse interharmonics due to spectral leakage effect.
Hsiung Cheng Lin
doaj   +1 more source

Mechanism of Forced Subsynchronous Oscillation of Large-Scale Photovoltaic Power Generation Grid-Connected System with Series Compensation Tranmmission Lines

open access: yesShanghai Jiaotong Daxue xuebao, 2022
There exists the subsynchronous oscillation (SSO) instability risk in large-scale photovoltaic(PV) grid-connected systems with series compensation, which is generally explained by the negative damped oscillation theory.
LIN Yong, KANG Jiale, YU Hao, CHEN Honglin, YANG Yanji, CHEN Wuhui
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

Power measurement accuracy analysis in the presence of interharmonics [PDF]

open access: yesMeasurement, 2020
Abstract Interharmonics present in voltage/current signals affect the measurement accuracy of power quantities defined in standard IEEE 1459. In this paper, the measurement errors caused by the measurement time intervals not satisfying integral multiple periods of interharmonics are discussed.
Yu, Yiqing   +4 more
openaire   +3 more sources

An improved passivity‐based control for suppressing the traction motor torque ripples due to traction network voltage fluctuation in high‐speed railways

open access: yesIET Power Electronics, 2023
When the voltage fluctuation of the traction network occurs in high‐speed railways, the interharmonics in the grid‐side voltage will propagate to the traction motor, which results in the motor torque ripple of running trains.
Wenqing Zhao   +3 more
doaj   +1 more source

A New Analytical Model of Single-Phase Diode Bridge Rectifiers in the Presence of Interharmonics in Supply Voltage

open access: yesIEEE Open Access Journal of Power and Energy, 2023
In this paper, a new accurate and comprehensive analytical model of harmonic and interharmonic distortion produced by a single-phase AC/DC diode bridge rectifier (DBR) is presented.
Jiri Drapela   +3 more
doaj   +1 more source

Research and Application of Algorithm for Distribution Network Synchronous Phasor Measurement Unit Based on Hanning Window

open access: yesZhongguo dianli, 2022
The measurement environment of distribution network is complex and poor, and the traditional synchronous phasor algorithm of transmission network is difficult to meet the requirements.
Gaowang YU   +5 more
doaj   +1 more source

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