Results 11 to 20 of about 12,015,384 (327)
Negative Sequence Control for Virtual Synchronous Machines Under Unbalanced Conditions
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2022 In this article, five strategies for controlling the negative sequence currents of a virtual synchronous machine (VSM) under unbalanced conditions are comparatively assessed, considering both grid-connected and islanded operations. While these strategies
Eros Avdiaj +3 more
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Study of Induction Motor Inter-Turn Fault Part II: Online Model-Based Fault Diagnosis Method
Energies, 2022 This paper (Part II) is a follow-up paper to our previous work on developing induction motor inter-turn fault (ITF) models (Part I). In this paper, an online ITF diagnosis method of induction motors is proposed by utilizing the negative sequence current ...
Seong-Hwan Im, Bon-Gwan Gu
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IEEE Open Journal of the Industrial Electronics Society, 2021 The growing relevance of voltage source converters (VSCs), and the deep impact they have on the development and maintenance of the electrical grid, increase the necessity of further research on how to deal with nonideal grid conditions from the VSCs ...
Pablo Montero-Robina +3 more
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IEEE transactions on power electronics, 2022 This article presents a control scheme that simultane-ously solves the problems of negative-sequence voltage compensation and negative-sequence current sharing in grid-connected microgrids using grid-feeding inverters.
M. Castilla +4 more
semanticscholar +1 more source
Zhejiang dianli, 2023 In case of an asymmetrical fault in PV accessed system， the inverter will simultaneously control the outputs of positive and negative sequence currents.
XU Xiaochun +3 more
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Single Phasing Effects on the Behavior of Three-Phase Induction Motor
Tikrit Journal of Engineering Sciences, 2023 The output of three-phase induction motors (3IM) is adversely affected by voltage imbalance. This work analyzes and estimates the output of a 3PIM operating on a balanced supply while contrasting it with a "single phasing" case.
Layth Fadhil Abbas +4 more
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Current decoupling control strategy for unbalanced input 3-1 matrix converter
工程科学学报, 2017 The reasons for low-order harmonics in the input current of a 3-1 matrix converter (3-1MC) were analyzed, and the relationship of modulation function between the output side and power compensation side was derived.
XU Yu-xiang +3 more
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Improved Model of Thermal Rotor Protection Including Negative Sequence Protection
Energies, 2022 The paper presents a new model of the thermal rotor protection 49R on synchronous generators with self-excitation with the influence of generator negative sequence protection 46I2.
Davorin Burgund, Srete Nikolovski
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Effects of Negative Sequence Voltage Subharmonics on Cage Induction Motors
Energies, 2022 In some power systems, voltage waveforms contain, apart from harmonics, interharmonics and subharmonics that are components of frequency less than or not an integer multiple of the fundamental frequency.
Piotr Gnaciński +4 more
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Power control strategies during voltage sags according to Spanish grid code [PDF]
, 2018 In order to connect any power converters into the grid there are some grid requirements to insure the safe operation of the grid. So, the control of the converters especially during abnormal condition e.g. during voltage sags is
Bakkar, Mostafa +4 more
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