Results 1 to 10 of about 906 (115)

Development of a Novel Control Scheme for Grid-Following Converter under Asymmetrical Faults

Energies, 2023
With the increasing penetration of converter-based power sources into the power system, the performance of the converter has become a key factor for enhancing grid reliability, especially during asymmetrical faults.
Muhammad Abubakar
exaly   +3 more sources

Development of a Novel Control Scheme to Achieve the Minimum Unbalance Factor and Real Power Fluctuations under Asymmetrical Faults

Energies, 2023
The increasing share of converter-based renewable energy sources in the power system has forced the system operators to demand voltage support from the converters in case of faults.
Muhammad Abubakar
exaly   +3 more sources

Coordinated Control of a Doubly-Fed Induction Generator-Based Wind Farm and a Static Synchronous Compensator for Low Voltage Ride-through Grid Code Compliance during Asymmetrical Grid Faults

Energies, 2013
This paper aims to explore a viable solution for a doubly-fed induction generator (DFIG)-based wind farm to meet the reactive support requirement of the low voltage ride-through (LVRT) grid code with safe grid-connected operation during asymmetrical grid
Hua Geng, Geng Hua
exaly   +3 more sources

Harmonic Sequence Component Model-Based Small-Signal Stability Analysis in Synchronous Machines during Asymmetrical Faults

Energies
Power systems are complex and often subject to faults, requiring accurate mathematical models for a thorough analysis. Traditional time-domain models are employed to evaluate the dynamic response of power system elements during transmission system faults.
OSCAR Cuaresma Zevallos, Jaime Rohten, Yandi Aníbal Gallego Landera   +2 more
exaly   +3 more sources

Study on fracture development and failure characteristics of repeated mining overlying strata in multi-coal seams with faults [PDF]

Scientific Reports
Taking a mine in Guizhou Province as the research background, a combination of similar simulation experiments and numerical simulation was used to analyse the spatial distribution of overburden collapse and the development of fissures during the mining ...
Baoyan Zhi, Rui Guo, Gang Guo, Shusen Zhang, Jiankun Yuan, Canyu Lei, Zuhao Xu   +6 more
doaj   +2 more sources

A Negative Sequence Current Phasor Compensation Technique for the Accurate Detection of Stator Shorted Turn Faults in Induction Motors

Energies, 2022
Stator faults are the most critical faults in induction motors as they develop quickly hence requiring fast online diagnostic methods. A number of online condition monitoring techniques are proposed in the literature to respond to such faults, including ...
Syaiful Bakhri, Nesimi Ertugrul
doaj   +1 more source

Simulation-based post-fault analysis in WECS using DFIG systems under an unbalanced fault scenario

Journal of Applied Research in Technology & Engineering, 2023
Fault analysis in an integrated Wind Energy Conversion System (WECS) is the highest priority factor to be taken into account for distributed generation (DG).
Muzamil Hussain Wadho, Surat Khan, Sadqain Hassan, Muhammad Ahmed Kalwar   +3 more
doaj   +1 more source

Study of Subsurface Structural Image and Model Using 2D Seismic Reflection Method of Injana Field Area, Northeastern Iraq

Iraqi Geological Journal, 2022
The Injana field area is located to the north of Baquba city within Diyala. which was studied and interpreted by using 2D seismic data from the Oil Exploration Company.
Mustafa Ahmed, Thair Al-Samarrai, Suhail Muhsin   +2 more
doaj   +1 more source

Finite-Control-Set Model Predictive Control for Low-Voltage-Ride-Through Enhancement of PMSG Based Wind Energy Grid Connection Systems

Mathematics, 2022
Grid faults are found to be one of the major issues in renewable energy systems, particularly in wind energy conversion systems (WECS) connected to the grid via back-to-back (BTB) converters.
Syed Wajahat Ali, Anant Kumar Verma, Yacine Terriche, Muhammad Sadiq, Chun-Lien Su, Chung-Hong Lee, Mahmoud Elsisi   +6 more
doaj   +1 more source

Fault Ride Through and Intermittency Improvement of Renewable Energy Integrated MMC-HVDC System Employing Flywheel Energy Storage

IEEE Access, 2023
Modular multilevel converter (MMC)-based high voltage direct current (HVDC) transmission networks integrate remotely located distributed renewable energy resources (RER). The intermittent nature of RER and symmetrical and asymmetrical AC-side low-voltage
Md Ismail Hossain, Waleed M. Hamanah, Md Shafiul Alam, Md Shafiullah, Mohammad A. Abido   +4 more
doaj   +1 more source