Results 11 to 20 of about 33,988 (309)

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

IET Generation, Transmission and 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, Jalil Yaghoobi, Abdulrahman Alduraibi   +2 more
exaly   +3 more sources

Current Harmonics Minimization of Permanent Magnet Synchronous Machine Based on Iterative Learning Control and Neural Networks

Machines, 2023
Electrical machines generate unwanted flux and current harmonics. Harmonics can be suppressed using various methods. In this paper, the harmonics are significantly reduced using Iterative Learning Control (ILC) and Neural Networks (NNs).
Annette Mai, Xinjun Liu, Bernhard Wagner, Maximilian Hofmann   +3 more
doaj   +2 more sources

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

Sensors
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

Current Harmonics Suppression of Six-Phase Permanent-Magnet Synchronous Motor Drives Using Back-Electromotive Force Harmonics Compensation

Energies
This paper investigates a back-electromotive force (EMF) harmonic compensation strategy for six-phase permanent-magnet synchronous motors (PMSMs) to reduce current harmonics and improve system performance.
Po-Sheng Huang, Cheng-Ting Tsai, Jonq-Chin Hwang, Cheng-Tsung Lin, Yu-Ting Lin   +4 more
doaj   +2 more sources

Implementation of a Current Harmonics Suppression Strategy for a Six-Phase Permanent Magnet Synchronous Motor

Energies
This paper proposes a current harmonic suppression strategy that combines harmonic synchronous rotating frame (HSRF) current feedback control and back-electromotive force harmonic (BEMFH) feedforward compensation to suppress the fifth and seventh current
Yu-Ting Lin, Jonq-Chin Hwang, Cheng-Ting Tsai, Cheng-Tsung Lin   +3 more
doaj   +2 more sources

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

IEEE 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, Jalil Yaghoobi, Firuz Zare, Dinesh Kumar   +3 more
doaj   +1 more source

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

IEEE 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, Jalil Yaghoobi, Firuz Zare   +2 more
doaj   +1 more source

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

IEEE 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, Lauri Kutt, Muhammad Naveed Iqbal, Noman Shabbir, Martin Parker, Marek Jarkovoi   +5 more
doaj   +1 more source

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

World 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, Qiang Miao, Pin Zeng, Zhichen Lin, Yiyang Li, Xinmin Li   +5 more
doaj   +1 more source

Interleaved Pulse Width Modulation Based on Modified Carrier in Parallel Operation

IEEE 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