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Analytical Investigation of Primary Waveform Distortion Effect on Magnetic Flux Density in the Magnetic Core of Inductive Current Transformer and Its Transformation Accuracy [PDF]

open access: yesSensors
This paper analyzes how distortion in the primary current waveform affects the magnetic flux density in the magnetic core of an inductive current transformer and its transformation accuracy.
Michal Kaczmarek, Kacper Blus
doaj   +2 more sources

Analysis of 0–9 kHz Current Harmonics in a Three-Phase Power Converter Under Unbalanced-Load Conditions

open access: yesIEEE Access, 2021
The unbalanced condition of typical loads in industrial networks could affect the current harmonics across the dc-link in Adjustable Speed Drives (ASDs).
Arash Moradi   +3 more
doaj   +1 more source

Impacts of Grid Voltage Harmonics Amplitude and Phase Angle Values on Power Converters in Distribution Networks

open access: yesIEEE Access, 2021
Motor drive systems based on diode-rectifier are utilised in many industrial and commercial applications due to their cost-effectiveness and simple topology.
Abdulrahman Alduraibi   +2 more
doaj   +1 more source

Waveform Variation Defined Model for Harmonic Current Emissions Including Cross-Order Supply Voltage Harmonics Influence

open access: yesIEEE Access, 2023
The paper reports an experimental non-linear load evaluation regarding current harmonics sensitivity to supply voltage harmonics. A base for the model is proposed relying on the time-domain waveform variations, rather than impedance or conductance ...
Kamran Daniel   +5 more
doaj   +1 more source

Modelling and prediction of current harmonics generated by power converters in distribution networks

open access: yesIET Generation, Transmission & Distribution, 2021
Predicting current harmonics in distribution networks is essential to find harmonic losses and power quality indices. In order to predict the current harmonics, the effect of grid impedance and voltage distortions on grid‐connected power converters need ...
Arash Moradi   +5 more
doaj   +1 more source

Multiple Synchronous Rotating Frame Transformation-Based 12th Current Harmonic Suppression Method for an IPMSM

open access: yesWorld Electric Vehicle Journal, 2022
In order to solve the problem that the three-phase current of the interior permanent magnet synchronous motor (IPMSM) contains the 11th and 13th current harmonics, a multiple synchronous rotating frame transformation (MSRFT)-based current harmonic ...
Yamei Xu   +5 more
doaj   +1 more source

Interleaved Pulse Width Modulation Based on Modified Carrier in Parallel Operation

open access: yesIEEE Access, 2021
An interleaved pulse width modulation (PWM) can be employed in a parallel operation of three-phase converters because the interleaved PWM increases the equivalent switching frequency and significantly enhances the output current harmonics.
Hyun-Sam Jung
doaj   +1 more source

An Improved Modulation Method for Parallel Three-Level Rectifiers With Circulating Current Mitigation

open access: yesIEEE Access, 2023
An improved modulation method is proposed for two parallel three-level interleaved rectifiers to reduce current harmonics and high-frequency zero-sequence circulating current, which uses sinusoidal pulse width modulation.
Yanfeng Li   +3 more
doaj   +1 more source

A Precise Model of DC-Link Current in Adjustable Speed Drives for the Harmonic Analysis of Electrical Networks

open access: yesIEEE Access, 2022
Adjustable Speed Drives (ASDs) deteriorate the power quality in distribution networks by increasing the harmonic distortions. These harmonics can also cause serious electromagnetic interference-related issues in the network, as they have a high value ...
Arash Moradi, Jalil Yaghoobi, Firuz Zare
doaj   +1 more source

Nonlinearity of Magnetic Core in Evaluation of Current and Phase Errors of Transformation of Higher Harmonics of Distorted Current by Inductive Current Transformers

open access: yesIEEE Access, 2020
The novelty of the paper contributes to the increase of the reliability of the methods used for evaluation of the inductive CTs accuracy of transformation of the distorted current.
Michal Kaczmarek, Ernest Stano
doaj   +1 more source

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