Results 1 to 10 of about 2,048,214 (132)
IEEE Access, 2021 With the increasing applications of grid-connected voltage source converters, it is important to analyze the impedance characteristic of the grid-connected system to implement the stability analysis of the grid connection operation.
Heng Nian +5 more
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Energies, 2020 Through the analysis of the recovery inrush current generated by the external fault removal of the converter transformer, it is pointed out that the zero-sequence current caused by the recovery inrush may result in the saturation of the neutral current ...
Tao Zheng +4 more
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Model development for the analysis of reducing voltage asymmetry methods in power supply systems
Известия высших учебных заведений: Проблемы энергетики, 2022 THE PURPOSE. To consider the issues of ensuring the quality of electricity in power supply systems. Show that the quality of electrical energy during the operation of power supply systems in certain cases may be violated, including due to uneven loading ...
V. I. Biryulin, D. V. Kudelina
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IEEE Access, 2023 A three-phase ac-dc converter with high-frequency isolation can be realized as a phase-modular system by using three single-phase Power Factor Correction (PFC) rectifier modules with isolated dc-dc converter output stages, which advantageously allows to ...
Thomas Langbauer +6 more
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IEEE Open Journal of Power Electronics, 2023 Realizing an isolated three-phase Power Factor Correction (PFC) ac-dc converter as a phase-modular system, i.e., by star-connecting three single-phase PFC rectifier front-ends with individual isolated dc-dc converter stages generating a common dc output ...
David Menzi +3 more
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A Power Ripple Compensator for DC Nanogrids via a Solid-State Converter
IEEE Open Journal of the Industrial Electronics Society, 2020 This paper presents a method for improving the reliability of DC nanogrids by decreasing the input capacitance requirement. The nanogrid DC bus capacitance requirement is reduced by utilizing the zero-sequence operation mode of the solid state converter (
Ahmad Khan +3 more
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Electrical engineering & Electromechanics, 2020 Introduction. A significant proportion of earth faults in medium voltage networks represents a short-lived and transient process. Problem. In such cases, earth fault protection that responds to steady-state current and voltage is not able to operate ...
V. F. Syvokobylenko, V. A. Lysenko
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Restraint Scheme of Transformer Zero Sequence Differential Protection Based on Tanimoto Similarity
Zhongguo dianli, 2023 As one of the important transformer protections, zero sequence differential protection has the advantages of high sensitivity and strong anti-interference ability.
Jia ZHU +5 more
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Energies, 2022 In some key areas, fault-tolerant control is usually needed in order to enable the motor to operate continuously in fault mode. Given that it is difficult to detect the zero-sequence current of the open winding permanent magnet synchronous motor after ...
Kangfei Lv, Xinwei Dong, Cong Zhu
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The structure of maximal zero-sum free Sequences [PDF]
, 2008 Let n be an integer, and consider finite sequences of elements of the group Z/nZ x Z/nZ. Such a sequence is called zero-sum free, if no subsequence has sum zero.
Bhowmik, Gautami +2 more
core +3 more sources