Fault ride-through of renewable energy conversion systems during voltage recovery
Journal of Modern Power Systems and Clean Energy, 2016 Asymmetrical voltage swells during recovery of a short-circuit fault lead to fluctuations in the dc-link voltage of a renewable energy conversion system (RECS), and may induce reversed power flow and even trip the RECS. This paper studies characteristics
Ruiqi Li, Hua Geng, Geng Yang
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Identification and location method of asymmetric faults in coal mine power network
Gong-kuang zidonghua, 2018 Three asymmetrical faults of singe-phase grounding, singe-phase line breakage and ferroresonance in coal mine power network are easily misjudged, and existing methods hardly identify the three faults correctly.
WANG Qingliang, QIN Jie, LIU Xinru
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Fault-tolerance Design and Validation of Power Converter [PDF]
Jisuanji gongcheng, 2017 In order to improve the reliability of the Switch Reluctance Generation(SRG)system,several common failures of power converter are analyzed.Combined with the superiority of the independence of asymmetrical bridge power converter,a kind of fault-tolerant ...
ZHOU Zheng,LIU Yongzhi,SONG Jinlong,MA Weimin,WANG Zhenliang
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PMSM low voltage ride through based on Coordinated Control Strategy [PDF]
E3S Web of Conferences, 2021 Based on the analysis of the operation characteristics of the fault of direct-drive permanent magnet wind turbine and the existing protection strategies, in order to improve the low-voltage operation capability of direct-drive permanent magnet wind ...
Zhaopeng Zhang, Dongnan Suo
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Influence Mechanism and Suppression Control of the MMC on Short-Circuit Current Under AC Faults
IEEE Access, 2020 Modular multilevel converter based high voltage direct current (MMC-HVDC) transmission systems may increase the short-circuit current and affect the AC fault clearing of circuit breakers.
Jian Yang +3 more
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Research on magnetic field and temperature field of multi-phase SPMSM under winding fault
Energy Reports, 2023 In order to quickly and accurately calculate fault-tolerant capability of multi-phase surface-mount permanent magnet synchronous motor (SPMSM) at condition of asymmetrical fault, based on subdomain model, an analytical model for multi-phase SPMSM with ...
Zhanyang Yu +4 more
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Fault suppression strategy of active compensators in asymmetric distribution networks
International Journal of Electrical Power & Energy SystemsThe new-type distribution network with a high penetration of distributed generation (DG) faces challenges such as significant power fluctuations and the inability to fully compensate for single-phase grounding fault currents.
Jian-zhang You +3 more
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Conjugate Vectors Method Applied to Asymmetrical Fault Analysis of Power Electronized Power Systems
CSEE Journal of Power and Energy SystemsWith the wide application of power electronized resources (PERs), the amplitude and frequency of voltages show significant time-varying characteristics under asymmetrical faults. As a result, the traditional phasor model, impedance model, and symmetrical
Yingbiao Li +4 more
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Asymmetrical Microfracture Density Across an Active Thrust Fault: Evidence from the Longmen Shan Fault, Eastern Tibet [PDF]
LithosphereMicrofracture density in fault damage zones can reflect spatial variability that decays in intensity as a function of distance from the fault, which is crucial in understanding the mechanical, seismological, and fluid-flow properties of the fault system.
Hu Wang +6 more
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Energies, 2020 The asymmetric faults often cause the power grid current imbalance and power grid oscillation, which brings great instability risk to the power grid.
Li Wang +4 more
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