Results 231 to 240 of about 280,256 (316)
Local-to-Nonlocal Second-Harmonic Generation from Electrically Tunable Intersubband Polaritonic Metasurfaces. [PDF]
Adv Sci (Weinh)Kim J +5 more
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Automated Nonlinear Acoustics System for Real-Time Monitoring of Cement-Based Composites. [PDF]
Sensors (Basel)Kordatou TZ, Exarchos DA, Matikas TE.
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Brushless wound rotor synchronous machine with third-harmonic field excitation
Electrical Engineering, 2019 This manuscript discusses a novel harmonic current excitation technique for a wound rotor synchronous machine based on control of the time harmonic magneto-motive force (MMF) for brushless operation. Two inverters are used to feed the armature winding in such a way that at a time, one inverter supplies the current to armature winding. The two inverters
Muhammad Ayub +3 more
semanticscholar +3 more sources
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Novel Brushless Wound Rotor Synchronous Machine With Zero-Sequence Third-Harmonic Field Excitation
IEEE Transactions on Magnetics, 2016This paper introduces a novel topology for generating a spatial third-harmonic current component to excite the rotor field winding of a wound rotor synchronous machine to achieve brushless operation. In this topology, each of the three-phase windings on the stator is connected with a switch in parallel.
Ghulam Jawad +3 more
semanticscholar +4 more sources
IEEE Transactions on Industry Applications, 2022 This paper proposes a novel electric-excitation claw-pole field-modulated (EECPFM) machine. Different from the conventional rotor-electric-excitation claw-pole machine, the excitation windings of the proposed machine are located in the stator, which ...
Xianglin Li +4 more
semanticscholar +3 more sources
Electrical Engineering, 2019
This paper proposes an inverter scheme to generate an additional third-harmonic component alongside the fundamental component of the current. The generated third-harmonic component is used to achieve the brushless operation in a wound field synchronous machine (WFSM).
Muhammad Ayub +3 more
openaire +2 more sources
This paper proposes an inverter scheme to generate an additional third-harmonic component alongside the fundamental component of the current. The generated third-harmonic component is used to achieve the brushless operation in a wound field synchronous machine (WFSM).
Muhammad Ayub +3 more
openaire +2 more sources
IEEE Transactions on Industrial Electronics, 2022
This article proposes a new brushless hybrid harmonic excitation scheme for wind generators, in which the excitation power is provided by the armature current and the stator harmonic control winding current together.
Fei Yao, Q. An, Lizhi Sun
semanticscholar +3 more sources
This article proposes a new brushless hybrid harmonic excitation scheme for wind generators, in which the excitation power is provided by the armature current and the stator harmonic control winding current together.
Fei Yao, Q. An, Lizhi Sun
semanticscholar +3 more sources
Brushless Wound Rotor Synchronous Machine With Third Harmonic Field Excitation Using Single Inverter
2018 IEEE International Magnetics Conference (INTERMAG), 2018The recent fluctuating prices of rare earth magnet used in PMSM has encouraged the researchers towards the other candidates, such as, PM-assisted synchronous reluctance machine (PMa-SyRM) and wound rotor synchronous machine (WRSM). Whereas, in WRSM, the assembly of brushes and slip rings connect the machine to its excitation system on the rotor side ...
M. Ayub, S. Bukhari, G. Sirewal, B. Kwon
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IEEE transactions on industrial electronics (1982. Print), 2019 This article presents a new field-modulation double-stator electrical-excitation synchronous machine (FM-DSEESM) and analyzes its harmonic components of double-layer air gap magnetic field.
Yubin Wang +3 more
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