An individual sequencing control strategy for three-phase four-leg inverter under unbalanced loads
Energy Reports, 2023 Under the influence of the unbalanced load, the negative and zero sequence components in the output voltage of the three-phase four-leg voltage source inverter(TPFL-VSI) will cause asymmetry voltage.
Hanzhou Jiang, Huan Pan, Bin Shang
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Early slight inter-turn short circuit fault diagnosis of axial flux stator coreless permanent magnet motor based on phase difference [PDF]
Journal of Hebei University of Science and TechnologyAiming at the problem of early inter-turn short circuit fault of axial flux stator coreless motor, a method for early inter-turn short circuit fault diagnosis and positioning of axial flux stator coreless motor based on the phase difference of zero ...
Xiaoguang WANG +4 more
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An Optimized Carrier Phase-Shifted Modulation Strategy for Cuk PV Inverter
IEEE Access, 2023 There exists the problems of output voltage zero-point drift and high even harmonic content of the three-phase Cuk liftable voltage photovoltaic (PV) inverter when it adopts the conventional carrier modulation method.
Renxi Gong, Cheng Zhao
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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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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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A new leakage protection method for mine power network
Gong-kuang zidonghua, 2016 A new leakage protection method was proposed which was based on least-square matrix algorithm. In the method, zero sequence current signal of each brance is extracted on the basis of additional DC source system, and DC component of the zero sequence ...
ZHAO Jianwen +6 more
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Assessment of asymmetry parameters for zero sequence component in the medium voltage network
, 2019 W pracy wyprowadzono parametryczne zależności pozwalające szacować wielkości charakteryzujące asymetrię napięcia, prądów, mocy i admitancji dla podstawowej i wyższych harmonicznych składowych symetrycznych zerowych.
Marciniak, Lubomir
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, 2022 In this article, a new zero-sequence current suppression technique for electrical machine emulators with reduced component count is proposed. The proposed control scheme is implemented by properly regulating the zero states in space vector modulation ...
Liu, Yujing, +7 more
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Optimization research on carrier phase-shifting modulation method of cascade multi-level inverter
Gong-kuang zidonghua, 2014 The traditional carrier phase-shifting modulation method of cascade high-voltage inverter has the problems of large switching loss and low utilization rate of DC voltage, and modulation method based on combination of carrier phase-shifting and vector ...
ZHENG Zheng, YAN Fei, ZOU Jin
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Largest component of subcritical random graphs with given degree sequence [PDF]
, 2023 We study the size of the largest component of two models of random graphs with prescribed degree sequence, the configuration model (CM) and the uniform model (UM), in the (barely) subcritical regime.
Coulson, Matthew John +1 more
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