Results 251 to 260 of about 1,151,086 (296)
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2021
Accurate diagnosis of slight inter-turn short circuit fault (ISCF) of permanent magnet synchronous motor (PMSM) has always been a difficult problem in the field of electrical engineering. Aiming at the problem of ineffective ISCF diagnosis, a method on Phase angle diagnosis of zero-sequence components is proposed.
Yecheng Zhang, Gai Liu
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Accurate diagnosis of slight inter-turn short circuit fault (ISCF) of permanent magnet synchronous motor (PMSM) has always been a difficult problem in the field of electrical engineering. Aiming at the problem of ineffective ISCF diagnosis, a method on Phase angle diagnosis of zero-sequence components is proposed.
Yecheng Zhang, Gai Liu
openaire +1 more source
2019 IEEE Energy Conversion Congress and Exposition (ECCE), 2019
In this paper, a generalized zero-voltageswitching pulse-width-modulation (ZVS-PWM) method for three-phase inverter with arbitrary power factor is proposed. By introducing an appropriate zero-sequence component to the three-phase sinusoidal modulation waves, there always exists one leg among the three legs whose switches do not commutate in every 600 ...
Yuying Wu, Ning He, Dehong Xu
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In this paper, a generalized zero-voltageswitching pulse-width-modulation (ZVS-PWM) method for three-phase inverter with arbitrary power factor is proposed. By introducing an appropriate zero-sequence component to the three-phase sinusoidal modulation waves, there always exists one leg among the three legs whose switches do not commutate in every 600 ...
Yuying Wu, Ning He, Dehong Xu
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2014 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), 2014
Transformers neutral grounding accessing small reactance is an effective measure to restrain short circuit current in 500kV power grid. But accessing small reactance will bring changes to the zero-sequence parameters of system. The relay protection, especially the main transformer protection and transmission line protection nearby will be affected and ...
Li Xiao-hua +4 more
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Transformers neutral grounding accessing small reactance is an effective measure to restrain short circuit current in 500kV power grid. But accessing small reactance will bring changes to the zero-sequence parameters of system. The relay protection, especially the main transformer protection and transmission line protection nearby will be affected and ...
Li Xiao-hua +4 more
openaire +1 more source
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers, 2013
The dynamic voltage restorer (DVR) is an effective protection device for wind turbine generators based on doubly-fed induction generator (DFIG) that is operated under unbalanced voltage dip conditions. The compensating voltages of the DVR depend on the voltage dips and on the influence of the zero sequence component. The zero sequence component results
Quach Ngoc Thinh +3 more
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The dynamic voltage restorer (DVR) is an effective protection device for wind turbine generators based on doubly-fed induction generator (DFIG) that is operated under unbalanced voltage dip conditions. The compensating voltages of the DVR depend on the voltage dips and on the influence of the zero sequence component. The zero sequence component results
Quach Ngoc Thinh +3 more
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An Analytical Simplified Three-Level SVPWM With Unified Zero-Sequence Component Injection
IEEE Transactions on Power Delivery, 2022Qingzeng Yan +4 more
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2002 IEEE Region 10 Conference on Computers, Communications, Control and Power Engineering. TENCOM '02. Proceedings., 2003
A new principle of ground-fault protection for resistance neutral grounded systems is presented. Unlike previous work. the principle realizes selective ground-fault protection by getting the active current component that is resulted from the neutral resistor and only exists in the faulted line. Obtaining of the active current is presented in detail. On
null Mu Longhua, null Meng Qinghai
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A new principle of ground-fault protection for resistance neutral grounded systems is presented. Unlike previous work. the principle realizes selective ground-fault protection by getting the active current component that is resulted from the neutral resistor and only exists in the faulted line. Obtaining of the active current is presented in detail. On
null Mu Longhua, null Meng Qinghai
openaire +1 more source
Zero-Sequence Fault Diagnosis and Wave Recording System Based on Transient Components Analysis
2022 2nd International Conference on Intelligent Technology and Embedded Systems (ICITES), 2022Jian Shen +5 more
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Female erectile tissues and sexual dysfunction after pelvic radiotherapy: A scoping review
Ca-A Cancer Journal for Clinicians, 2022Deborah C Marshall, Mas +2 more
exaly
2022 4th Asia Energy and Electrical Engineering Symposium (AEEES), 2022
Tao Yan +4 more
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Tao Yan +4 more
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