Multilayer air gap winding designs for electric machines: theory, design, and characterisation
The Journal of Engineering, 2019 Here, the authors present a magnetic circuit design with a multilayer air gap winding. This design provides a new degree of freedom in the design process.
Norman Borchardt +4 more
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The Journal of Engineering, 2020 This study analyses a double Y shaft 30° winding for six-phase fault-tolerant permanent magnet synchronous motors and introduces a novel modular 18-slot stator topology used in high-performance electric vehicles with unequal teeth width and unequal slot ...
Zhong An Yu +3 more
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Energy-Efficient Compact Heat Exchangers Made of Porous Heat-Conducting Materials
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2018 After successful increase of levels of thermal resistances of building enclosing structures, expenses of heat on ventilation of rooms in many cases reached similar magnitudes of indicators of heating in a cold season.
S. N. Osipov, A. V. Zakharenko
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Design and analysis of a novel rotor-segmented axial-field switched reluctance machine
CES Transactions on Electrical Machines and Systems, 2017 As excitation strategy is influenced by the parity of phase number, and serious end effect is caused by full pitch windings adopted by the conventional rotor-segmented switched reluctance machine (RS-SRM), a novel rotor-segmented axial-field switched ...
Wei Sun, Qiang Li, Kai Liu, Lei Li
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Closed-Loop Soft Starter Firing Angle Control Method Using Only Current Feedback
IEEE AccessA soft starter is commonly utilized in various industrial induction motor systems to reduce the inrush current during motor startup. The conventional voltage ramp-up method, used in the typical soft starter, gradually increases the voltage over the ...
Dae-Young Yang +4 more
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Study on the optimisation of the end fittings of the DC disconnector
The Journal of Engineering, 2019 The disconnector is the key electrical equipment in DC field. In China, the ±1100 kV DC project uses the indoor DC field, where the switching impulse withstand voltage of the disconnector influences the clearance a lot.
Jindi Li +4 more
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Discharge voltage prediction of UHV AC transmission line–tower air gaps by a machine learning model
The Journal of Engineering, 2019 Full-scale discharge tests of transmission line–tower air gaps are costly and time-consuming, and they cannot exhaustively simulate all the gap configurations in practical engineering. In this paper, a machine learning model established by support vector
Zhibin Qiu +4 more
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Research on key technologies in ±1100 kV ultra-high voltage DC transmission
High Voltage, 2018 Based on completely mastering ±800 kV transmission technologies, the first ±1100 kV direct current (DC) transmission demonstration project is being constructed in China.
Zehong Liu +4 more
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Research on optimisation of minimum air clearance of 1000 kV UHV AC substation
The Journal of Engineering, 2019 Based on air clearance discharge characteristic curve and insulation coordination method, it is pointed out that the minimum air clearance of 1000 kV ultra-high voltage (UHV) AC substation can be further optimised.
Li Zhenqiang +3 more
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Effect of a floating conductor on the breakdown performance of a rod–plane air gap
The Journal of Engineering, 2019 Floating conductor has an effect on the process of air gap discharge, a laboratory experiment has been designed to analyse in detail the development of such discharge in a rod–plane air gap, submitted to an impulse voltage. High-speed optical observation
Guanghua Yang +5 more
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