Results 1 to 10 of about 1,597 (258)
Enhanced TVI for Grid Forming VSC under Unbalanced Faults [PDF]
Energies, 2021 With an increasing capacity of inverter-based generation and with a 100% renewable energy power system on the horizon, grid forming converters have the potential to become the prevalent control mode in the grid.
Alain Sanchez-Ruiz +2 more
exaly +5 more sources
IEEE Access, 2020 Capacitor faults are a common issue in modern-day power systems. Such systems employ a traditional mechanism that solely relies on unbalanced relays as an indicator of faults in capacitor banks; however, in the case of a relay trip, operators may find it
Atthapol Ngaopitakkul +1 more
exaly +3 more sources
Energies, 2023 Renewable power generation has increased in recent years, which has led to a decrease in the use of synchronous generators (SGs). These power plants are mainly connected to the power system through electronic converters.
JOSÉ Luis Rodríguez +2 more
exaly +3 more sources
Fault Analysis Method Considering Dual-Sequence Current Control of VSCs under Unbalanced Faults
Energies, 2018 Voltage source converters (VSCs) are able to provide both positive- and negative-sequence short circuit currents under unbalanced faults. Their short circuit responses can be significantly different from those of conventional synchronous generators. This
Jundi Jia +2 more
exaly +3 more sources
Adaptive diagnosis method based on gearbox unbalanced fault data
Jixie chuandongObjectiveThe existing intelligent fault diagnosis methods face challenges, such as model training relying on a large amount of labeled data, difficulty in obtaining fault data with different occurrence probabilities, and insufficient consideration of the
TIAN Juan +3 more
doaj +3 more sources
Flexible Power Regulation and Limitation of Voltage Source Inverters under Unbalanced Grid Faults
CES Transactions on Electrical Machines and Systems, 2022 This paper develops a flexible power regulation and limitation strategy of voltage source inverters (VSIs) under unbalanced grid faults. When the classical power theory is used under unbalanced grid faults, the power oscillations and current distortions ...
Peng Cheng +4 more
doaj +1 more source
Improved control of virtual synchronous generator under unbalance of grid voltage
Energy Reports, 2023 Asymmetric faults in the power grid will lead to unbalanced grid voltage. When the traditional VSG control operates under unbalanced grid voltage, the output current will be unbalanced, resulting in output power oscillation.
Chunxue Wen +3 more
doaj +1 more source
Zhongguo dianli, 2023 Under typical magnetic field asymmetry faults, the synchronous condenser has an increase in unbalance force formed by forced excitation and tripping risk.
Guizhou CAO +5 more
doaj +1 more source
Frontiers in Energy Research, 2021 This paper presents a region boundaries determination method for critical commutation failures (CF) in multi-infeed high-voltage direct-current (HVDC) systems under unbalanced short circuit faults.
Guoqing Li +4 more
doaj +1 more source
Analysis and Treatment of Mass Unbalance Fault of Fan in Large Thermal Power Plant
发电技术, 2020 Mass unbalance is one of the most common faults of fans in thermal power plants. Sometimes, even the vibration of fans caused by other faults can be doubled by the exciting force caused by mass unbalance.
Wei WEI
doaj +1 more source