Results 41 to 50 of about 489,649 (259)
Learning Models over Relational Data using Sparse Tensors and Functional Dependencies
Integrated solutions for analytics over relational databases are of great practical importance as they avoid the costly repeated loop data scientists have to deal with on a daily basis: select features from data residing in relational databases using ...
Khamis, Mahmoud Abo +4 more
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Unique double salient structure of Permanent Magnet Flux Switching Machines (PMFSM) with both Concentrated Armature Winding (CAW) and Permanent Magnet (PM) on stator attract researcher's interest for high speed brushless application when high torque ...
Wasiq Ullah +3 more
doaj +1 more source
Computationally Efficient Strand Eddy Current Loss Calculation in Electric Machines [PDF]
A fast finite element (FE) based method for the calculation of eddy current losses in the stator windings of randomly wound electric machines is presented in this paper.
Chong, Yew Chuan +5 more
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High torque output capability is crucial for electric vehicle in‐wheel machines. In order to comprehensively evaluate the performance of different out rotor flux reversal permanent magnet (FRPM) machines, a comparative study of two FRPM machines with ...
Yunpeng Zhang, Zhenyang Qiao, Weinong Fu
doaj +1 more source
Application of advanced materials to rotating machines [PDF]
In discussing the application of advanced materials to rotating machinery, the following topics are covered: the torque speed characteristics of ac and dc machines, motor and transformer losses, the factors affecting core loss in motors, advanced ...
Triner, J. E.
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A back to back multilevel converter for driving low inductance brushless AC machines [PDF]
Traditionally, multilevel converters are utilised in medium voltage applications, allowing the DC-link voltage to exceed the switch maximum blocking voltage.
Bingham, Chris +3 more
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Over time, high-temperature superconductor (HTS)-coated conductors (CCs) have proven to be promising candidates for future high-efficiency and high-power density electrical machines.
Wafa Ali Soomro +5 more
doaj +1 more source
Flux observer algorithms for direct torque control of brushless doubly-fed reluctance machines [PDF]
Direct Torque Control (DTC) has been extensively researched and applied to most AC machines during the last two decades. Its first application to the Brushless Doubly-Fed Reluctance Machine (BDFRM), a promising cost-effective candidate for drive and ...
Chaal, Hamza, Jovanovic, Milutin
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Numerical Study of Multi‐Pole Generator With HTS Windings for Direct Drive Wind Turbines
High‐temperature superconducting (HTS) materials show potential advantages for direct drive wind turbine generators by enabling higher power density and lower volume. However, incorporating HTS windings necessitates a cryogenic system, which can increase
Shuangrong You +5 more
doaj +1 more source
Intelligent Identification Method for ZDJ-9 AC Turnout Switch Machine Faults
Objective By analyzing abnormal three-phase action currents of AC switch machines, it is possible to identify faults in the turnout equipment. However, due to the constant operation of switch machines for large number of turnouts on urban rail transit ...
Junjie LIU
doaj +1 more source

