Ultraviolet-spot distribution and photon-count variation characteristics in direct current partial discharge [PDF]
AIP AdvancesTo address the challenges of ultraviolet (UV) imaging technology for partial discharge (PD) in high-voltage direct current (HVDC) converter stations (equipment), a comprehensive UV image processing methodology has been developed, and a needle–needle ...
Xiuhai Wu +6 more
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Overview on Grid-Forming Inverter Control Methods
Energies, 2020 In this paper, different control approaches for grid-forming inverters are discussed and compared with the grid-forming properties of synchronous machines. Grid-forming inverters are able to operate AC grids with or without rotating machines. In the past,
Peter Unruh +3 more
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Angular dependence in ultraviolet imaging of HVDC partial discharges: Mechanism investigation and correction approach [PDF]
AIP AdvancesTo address the observation angle effects on the diagnosis accuracy of ultraviolet (UV) imaging for partial discharge (PD) monitoring in high-voltage direct current (HVDC) equipment, this study investigates the underlying mechanism and develops a ...
Jinwei Lv +6 more
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TRANSIENT MODELING IN COMMON DC LINK OF POWER CONVERTERS [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2020 Subject of Research. The paper presents a mathematical model of an electric drive convertor operating in a common DC link for the 280-kW power level of the BELAZ-90 mining truck. The model is developed in MATLAB Simulink.
Alecksey S. Anuchin +3 more
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Open-Circuit Fault Diagnosis Method of Energy Storage Converter Based on MFCC Feature Set
Zhongguo dianli, 2022 Power conversion system (PCS) fault diagnosis plays an important role in the intelligent operation and maintenance of battery energy storage power stations.
Bin YU +5 more
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Nonlinear photon emission and discharge mode transitions in HVDC needle–needle electrodes: Insights from UV photon spot distribution mapping [PDF]
AIP AdvancesThis study proposes a methodology for the development of ultraviolet (UV) spot distribution mapping with probabilistic processing, with the objective of addressing the challenges associated with the monitoring of partial discharge (PD) in high-voltage ...
Zhiliang Yin +5 more
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Metals, 2022 A new technology of hydrogen bottom blowing instead of traditional argon blowing in the current converter steelmaking process is proposed herein, in the aim of overcoming problems such as energy shortages caused by increased scrap charging, the low ...
Jianhua Liu +6 more
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Comparative feasibility study of partial power converter for interfacing battery energy storage into power system of future circular collider [PDF]
Proceedings of the Estonian Academy of SciencesThe recent appearance of partial power converters has shown their potential to significantly improve the efficiency and power density of power electronic systems. However, their feasibility in different applications is not sufficiently studied.
Andrii Chub +3 more
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Digital Twin Development of a Testing Grid Using a Grid Analyzer
IEEE Open Journal of Power ElectronicsThe recent transformation of the energy sector brings new challenges in areas such as supply security, efficiency, and reliability. Especially the increase of decentralized power plants leads to a more complex energy system and an increasing complexity ...
Derk Gonschor +9 more
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Elektrotehnìka ta Elektroenergetika, 2010 Розроблено модель системи асинхронного електропривода дизель-поїзда з додатковим внутрішнім зворотнім зв’язком за частотою поля двигуна.
D. О. Kulagin +2 more
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