Results 11 to 20 of about 5,589,178 (285)
Kongzhi Yu Xinxi Jishu, 2013 This paper illustrated var and negative sequence comprehensive compensation principles of cascaded static var generator(SVG) with star-configuration. The mathematical expression of zero-sequence voltage was deduced, and subsequently zero-sequence voltage
XIONG Qiaopo, LUO An, ZENG Zhizhen
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Induction Motor Fault Diagnosis Based on Zero-Sequence Current Analysis
Energies, 2020 This paper presents some considerations regarding the application of the stator zero-sequence current component (ZSC) in the fault detection of cage induction machines, including the effects of magnetic core saturation.
Arkadiusz Duda, Piotr Drozdowski
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Gong-kuang zidonghua, 2022 At present, most of the research on underground power supply system grounding fault positioning in coal mine adopts the transient method, which needs to collect zero sequence voltage and zero sequence current of the line at the same time.
OUYANG Min +10 more
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ASSESSMENT OF CONSUMER IMPACT ON VOLTAGE ASYMMETRY BY THE ZERO SEQUENCE AT THE POINT OF COMMON CONNECTION [PDF]
Вестник Северо-Кавказского федерального университета, 2022 The article presents a technique for assessment the level of consumers’ impact on the voltage asymmetry by the zero sequence at the point of common connection. The results of a computational experiment that determine the possibility of using the level of
Dmitrii Kostyukov
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Application of symmetrical component method in protection system of bolter-miner
Gong-kuang zidonghua, 2017 In view of problems of low reliability and accuracy of fault diagnosis of asynchronous motor in bolter-miner, symmetrical component method was purposed to apply in protection system of bolter-miner to realize asymmetry over-current fault diagnosis. Three-
JIAO Xiaofeng
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Hybrid Reluctance Machine with Skewed Permanent Magnets and Zero-Sequence Current Excitation [PDF]
Energies, 2022 The reluctance machine is a potential candidate for electrical vehicle propulsion because of its reliable structure, low cost, flexible flux regulation ability, and wide speed range.
Ziqi Huang +3 more
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Research on zero-sequence circulating current of bidirectional converters
机车电传动The bidirectional converter device, featuring multiple converters in parallel on both AC and DC sides, employs carrier phase-shifting control. This approach can significantly enhance system capacity and reduce grid current harmonics; however, it also ...
YANG Jun +5 more
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Demagnetisation fault detection in PMSM using zero sequence current components
Electronics Letters, 2017 A demagnetisation fault detection method for a delta‐connected permanent magnet synchronous machine (PMSM) based on zero sequence current components (ZSCC) is proposed. The model of the delta‐connected PMSM with the demagnetisation fault is first established.
Shichuan Ding +3 more
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Energies, 2019 For fast and accurate faulty line selection (FLS) in single phase-to-ground (SPG) faults for resonant grounded distribution networks (RGDNs), this paper proposes a FLS method based on zero-sequence power characteristics.
Wenquan Shao +4 more
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Xi'an Gongcheng Daxue xuebaoThe multi terminal flexible interconnection equipment with cascaded full bridge and dual active bridge structure could connect AC power grid and multiple DC power grid, and instantaneous power differences in different DC power grids and sub module faults
WANG Bo +4 more
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