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
doaj +1 more source
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
doaj +1 more source
Hybrid Reluctance Machine with Skewed Permanent Magnets and Zero-Sequence Current Excitation
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
doaj +1 more source
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
doaj +1 more source
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
openaire +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj
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
doaj +1 more source
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
doaj +1 more source