Results 261 to 270 of about 4,140,882 (287)
Some of the next articles are maybe not open access.
2016 IEEE International Energy Conference (ENERGYCON), 2016
Phase-to-phase short-circuit faults in a permanent-magnet synchronous machines are quite dangerous because of the extremely high short-circuit transient current after fault. This paper presents a fault detection and identification diagnosis approach for asymmetrical faults in permanent-magnet synchronous machines, considering both inter-turn and phase ...
Ge, Yuxue +3 more
openaire +2 more sources
Phase-to-phase short-circuit faults in a permanent-magnet synchronous machines are quite dangerous because of the extremely high short-circuit transient current after fault. This paper presents a fault detection and identification diagnosis approach for asymmetrical faults in permanent-magnet synchronous machines, considering both inter-turn and phase ...
Ge, Yuxue +3 more
openaire +2 more sources
A new compact band‐pass filter based on an asymmetric short‐circuited spurline resonator
Microwave and Optical Technology Letters, 2010AbstractIn this letter, a new compact two‐pole band‐pass filter (BPF) based on an asymmetric short‐circuited spurline resonator is presented. The filter is modeled by means of a new multimodal circuit model for a microstrip to three‐line‐microstrip cross, which allows a rigorous study of a very generic new family of filters.
P. Rodriguez‐Cepeda +6 more
openaire +1 more source
2020 Asia Energy and Electrical Engineering Symposium (AEEES), 2020
This paper studies the dynamic response of the wound rotor brushless doubly-fed generator (BDFG) in asymmetrical fault conditions in the wind turbine. Physical behaviors under asymmetrical short-circuits are described by generalized analytical solutions and the relationship between flux linkage vectors is derived.
Quanquan Wang +4 more
openaire +1 more source
This paper studies the dynamic response of the wound rotor brushless doubly-fed generator (BDFG) in asymmetrical fault conditions in the wind turbine. Physical behaviors under asymmetrical short-circuits are described by generalized analytical solutions and the relationship between flux linkage vectors is derived.
Quanquan Wang +4 more
openaire +1 more source
Electric Power Systems Research, 1982
Abstract This paper contains a new method for analysing symmetrical and asymmetrical faults at any point in a power system, which may include several synchronous machines connected together with transmission systems. The method is developed by using the symmetrical components, the axial components and a modified compensation theorem.
Esmat H. Badawy, B. Ramsay
openaire +1 more source
Abstract This paper contains a new method for analysing symmetrical and asymmetrical faults at any point in a power system, which may include several synchronous machines connected together with transmission systems. The method is developed by using the symmetrical components, the axial components and a modified compensation theorem.
Esmat H. Badawy, B. Ramsay
openaire +1 more source
IEE Proceedings - Electric Power Applications, 2005
A method for transformer design with an asymmetric winding configuration to reduce the inrush current with appropriate voltage regulation and short-circuit current is proposed. Differing from the traditional symmetric winding structure in transformer design, this method can provide the high inrush equivalent inductance and suitable leakage inductance ...
J.-F. Chen +5 more
openaire +1 more source
A method for transformer design with an asymmetric winding configuration to reduce the inrush current with appropriate voltage regulation and short-circuit current is proposed. Differing from the traditional symmetric winding structure in transformer design, this method can provide the high inrush equivalent inductance and suitable leakage inductance ...
J.-F. Chen +5 more
openaire +1 more source
2024 7th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST)
Linglong Cai, Xiaofeng Pang
exaly +2 more sources
Linglong Cai, Xiaofeng Pang
exaly +2 more sources
OVERVOLTAGE AT THE TRANSFORMER WHEN DISCONNECTING CLOSE ASYMMETRICAL SHORT CIRCUITS
This article examines overvoltages at the inputs of high-voltage (HV) and low-voltage (LV) transformers rated at 110/6 kV and 110/10 kV, focusing on scenarios involving grounded and isolated neutrals during short circuits near the transformers. The study finds that with an isolated neutral, overvoltages resulting from a phase-to-ground short circuit ...Mufidzade, Nahid, Gulgaz Ismayilova
openaire +1 more source
Journal of Microcomputer Applications, 1988
Abstract The fact that a loss of symmetry in the stator currents of a generator produces a second harmonic component in the field circuit is used in the reported work to detect all asymmetrical faults on the stator side, including inter-turn short-circuits.
H.K. Verma, S.S. Chhajta
openaire +1 more source
Abstract The fact that a loss of symmetry in the stator currents of a generator produces a second harmonic component in the field circuit is used in the reported work to detect all asymmetrical faults on the stator side, including inter-turn short-circuits.
H.K. Verma, S.S. Chhajta
openaire +1 more source
2019 6th International Conference on Soft Computing & Machine Intelligence (ISCMI), 2019
Asymmetrical three-phase short circuit faults occur more often than symmetrical three-phase short circuits faults. The asymmetrical three-phase short circuit faults can be line-to-line faults, double line-to-earth faults or line-to-earth faults. Symmetric components technique and computer methods like time-domain fault analysis as well as quasi steady ...
Chikomborero Shambare +2 more
openaire +1 more source
Asymmetrical three-phase short circuit faults occur more often than symmetrical three-phase short circuits faults. The asymmetrical three-phase short circuit faults can be line-to-line faults, double line-to-earth faults or line-to-earth faults. Symmetric components technique and computer methods like time-domain fault analysis as well as quasi steady ...
Chikomborero Shambare +2 more
openaire +1 more source
Short-circuit current of doubly fed induction generator under partial and asymmetrical voltage drop
Renewable Energy, 2016Abstract The doubly fed wind turbine is the main equipment of wind generators. The fault transient characteristics of doubly fed induction generators (DFIG) have elicited the attention of many scholars. However, the short-circuit current (SCC) of power grid-contained DFIG under asymmetrical voltage drop cannot be accurately analyzed.
Jinxin Ouyang +4 more
openaire +1 more source