Results 51 to 60 of about 215 (160)

New Power Balance Equations for Modelling Electric Arc Furnace

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
‐ Proposing two new power balance equations which consider both arc radius and length. ‐ Proposing four new EAF models. ‐ Time varying characteristics of the model are preserved as model parameters change every half cycle. ‐ Like the actual cases, the time variations are non‐stationary as different ARMA models are selected at every run of the models. ‐
Zahra Babaei, Haidar Samet, Vladimir Alexandrovich Serikov   +2 more
wiley   +1 more source

Research on Vibration and Noise of Converter Transformer Based on LCL Converter

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
The paper outlines the topology of the new LCL converter. Through theoretical analysis and experimental verification, it has been confirmed that the proposed LCL converter not only effectively sup‐presses harmonics but also significantly reduces the vibration and noise of the converter transformers.
Liang Zhao, Longfu Luo, Yuzhuo Wang, Hao Zhang, Yan Feng, Yanyun Jin   +5 more
wiley   +1 more source

Monitoring and Confirmation Method for Submodule IGBT Open‐Circuit Faults in MMCs Under Different Modes

IET Power Electronics, Volume 18, Issue 1, January/December 2025.
This paper proposes an effective detection method for insulated gate bipolar transistor (IGBT) open‐circuit faults in multiple modular multilevel converters (MMCs) working in inverter and rectifier modes. This fault detection uses segmental structure and is composed of the fault monitoring and fault confirmation.
Zhengkui Zhao, Minxiao Han
wiley   +1 more source

Effect of Rectangular Voltage Fluctuations on Currents of Single-Phase Induction Motors

Scientific Journal of Gdynia Maritime University
Various power quality disturbances commonly occur in a power system, including voltage fluctuations. These can be analysed as simultaneous occurrences of voltage subharmonics and interharmonics of various frequencies – components of frequency less than ...
Marcin Pepliński, Piotr Gnaciński
doaj   +1 more source

Accurate Analysis of Harmonic Transmission of Line Commutated Converter Considering Firing Angle Fluctuation

IEEE Access, 2020
Line commutated converter (LCC) has been widely applied in hybrid high voltage direct current (HVDC) transmission system, where the modular multilevel converter (MMC) is applied as receiving end and may induce low order harmonics in DC-link voltage ...
He Huang, Junpeng Ma, Shunliang Wang, Yuqing Dong, Ning Jiao, Tianqi Liu   +5 more
doaj   +1 more source

Impedance‐Based Adaptive Droop Control for Islanded AC Microgrids and Overview

International Transactions on Electrical Energy Systems, Volume 2025, Issue 1, 2025.
Recent improvements in the application of distributed energy resources (DERs) and microgrids (MGs) have made controlling these resources very important. However, there are still many challenges in this field. One of the anticipated challenges in islanded MGs (IMGs) is the mismatched output impedance of DERs, which affects the volt‐var regulation ...
Forough Qashqaie, Hadi Saghafi, Ramtin Sadeghi, Bahador Fani, Michele De Santis   +4 more
wiley   +1 more source

Data‐Driven Deep Learning Algorithm for Harmonics and Interharmonics Flicker Prediction and Mitigation in the Smart Grid System

International Transactions on Electrical Energy Systems, Volume 2025, Issue 1, 2025.
In grid‐connected smart distribution systems, the prediction and mitigation of flicker caused by harmonics and interharmonics present a significant challenge for stable grid operation, particularly in the presence of distributed renewable energy sources (DRESs).
Shree Ram Senthil Subramani, Balamurugan Rangaswamy, Jaouher Ben Ali   +2 more
wiley   +1 more source

Control System of an SVC Based on ARMA Model to Improve the Displacement Power Factor of an Electric Arc Furnace

Journal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.
In the steel industry, electric arc furnaces (EAFs) are essential for metal scrap recycling. However, they are known for their high reactive power consumption, negatively impacting power quality (PQ). The static VAR compensator (SVC) is the reactive power compensation device that provides the best cost‐benefit relation for mitigating the impact of EAFs.
J. Marulanda-Durango, A. Escobar-Mejía, E. Giraldo, Antonio Bracale   +3 more
wiley   +1 more source

Synchronized Measurement of the Fundamental Voltage and Harmonic, Interharmonic, and Subharmonic Components of the Electrical Grid Using an Adaptive Kalman Filter

Applied Sciences
The effects of harmonics, interharmonics, and subharmonics on low-voltage distribution networks, leading to a deterioration in electrical power quality, have become more evident in recent years.
Germán Martínez-Navarro, Salvador Orts-Grau, José Carlos Alfonso-Gil, Pedro Balaguer-Herrero   +3 more
doaj   +1 more source

RETRACTED: Cross‐country high impedance fault diagnosis scheme for unbalanced distribution network employing detrended cross‐correlation

IET Generation, Transmission &Distribution, Volume 18, Issue 24, Page 4192-4208, December 2024.
The cross‐correlation technique was used in this study to recover the complex, aperiodic, asymmetric, and non‐linear properties of the signals during cross‐country faults with high impedance fault syndrome. Due to its reduced sensitivity to background fluctuations, a given change may not affect all of the component peaks.
Pampa Sinha, Kaushik Paul, Sayanti Chatterjee, Fausto Pedro García Márquez, Jyotsna Ogale, Ahmed Ali, Baseem Khan   +6 more
wiley   +1 more source