Results 61 to 70 of about 201 (163)

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

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

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

LADRC‐based non‐characteristic harmonic suppression strategy for pumped storage power plants

Electronics Letters, Volume 60, Issue 20, October 2024.
This letter proposes a control strategy based on linear active disturbance rejection control (LADRC) to alleviate the delay triggering angle α non‐characteristic harmonics caused by transient disturbances. The validity of the conclusion was verified through on‐site data collection, theoretical analysis, and simulation verification.
Zheng Lan, Xi Peng, Jie Liu, Fei Jiang, Zhonglong Li   +4 more
wiley   +1 more source

A High-Speed Master-Slave ADALINE for Accurate Power System Harmonic and Inter-Harmonic Estimation

IEEE Access, 2020
This paper presents a unique two-fold adaptive linear neural network (ADALINE) for fast and accurate measurement of fundamental, harmonics, sub-harmonics, inter-harmonics and decaying DC components of a distorted current signal with additive noise.
Priyabrat Garanayak, R. T. Naayagi, Gayadhar Panda   +2 more
doaj   +1 more source

Evaluation of Waveform Distortion in BESS-Integrated Fast-Charging Station

World Electric Vehicle Journal
This paper presents a detailed, measurement-based assessment of interharmonic, harmonic, and supraharmonic emissions from a Battery Energy Storage System (BESS) supporting electric vehicle (EV) fast charging.
Manav Giri, Sarah Rönnberg
doaj   +1 more source

MIMO sequence impedance modeling and stability assessment for grid-connected dual-PWM adjustable speed drives

International Journal of Electrical Power & Energy Systems
The dc link of dual pulse width modulation (PWM) adjustable speed drives (ASDs) is coupled with inverter-motor-drive systems (IMDs) and grid-side converters, forming a multi-coupled system that complicates grid stability analysis beyond that of ...
Dirui Yang, Yuewu Wang, Ke Yang, Zhewen Kan, Kun Xia   +4 more
doaj   +1 more source

Study on the Mechanism of Experiment Change and Interharmonic Frequency Doubling Error of Rolling Bearing Fault Characteristic Frequency

Jixie chuandong, 2016
The calculation of characteristic frequency of rolling bearing fault is the important theory basis for rolling bearing fault diagnosis and condition monitoring all the time.
Sun Xianbin, Tan Jiwen, Wen Yan
doaj