Results 21 to 30 of about 280,256 (316)
NONLINEAR FIELD RESPONSE OF PILES UNDER HORIZONTAL HARMONIC EXCITATIONS
Proceedings of International Structural Engineering and Construction, 2022 Harmonic excitation of pile foundation is a typical dynamic phenomenon occur during machine vibration. In many cases, it has been found that the horizontal excitations are the critical ones which governs the design for machine-based pile foundations. In order to comprehend the horizontal frequency-amplitude responses of pile foundation under various ...
Shiva Shankar Choudhary, Sanjit Biswas
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Novel Single Inverter-Controlled Brushless Wound Field Synchronous Machine Topology
Mathematics, 2021 This paper proposes a novel brushless excitation topology for a three-phase synchronous machine based on a customary current-controlled voltage source inverter (VSI).
Syed Sabir Hussain Bukhari +5 more
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Loss characteristics investigation of FSCW-PMSM under SVPWM inverter supply
电力工程技术, 2023 To investigate the effects of time-harmonic current introduced by inverter on loss characteristics of fractional-slot concentrated-winding permanent magnet synchronous machine (FSCW-PMSM), a method is proposed to analyze the harmonic characteristics of ...
CHEN Zhenfei +4 more
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Research on the Orthogonal Fundamental Mode Fluxgate Sensor Circuit
IEEE Access, 2020 Currently, magnetic fluxgate circuits used for magnetic field measurements mostly adopt parallel excitation second harmonic generation. The magnetic fluxgate developed by this method cannot possess both low noise and high bandwidth at the same time.
Zhenzhong Yuan +4 more
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Energies, 2020 In an open-winding machine, three-phase stator currents can be controlled such that the input armature currents may contain the third-harmonic current component in addition to the fundamental.
Syed Sabir Hussain Bukhari +3 more
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Application of square-wave inverter in excitation system for magnetic nanoparticle tomography
AIP Advances, 2022 To collect the signals of magnetic nanoparticles (MNPs) at a distance from a magnetic nanoparticle tomography, a strong ac magnetic field should be generated by applying a high current to the excitation coil.
Kohta Higashino +3 more
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Fault-Tolerant Operation of Wound Field Synchronous Machine Using Coil Switching
IEEE Access, 2019 This paper proposes a fault tolerant operation of a wound field synchronous machine (WFSM) under the loss of excitation (LOE) fault in the rotor field winding. A two-mode field excitation scheme is presented, where the rotor of the WFSM was modified, and
Muhammad Ayub +3 more
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Photonics, 2023 The valley pseudospin properties of electrons in two-dimensional hexagonal materials result in many fascinating physical phenomena, which opens up the new field of valleytronics.
Xi Liu +4 more
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Novel Self-Excited Brush-Less Wound Field Vernier Machine Topology
IEEE Access, 2022 To realize the brush-less operation for wound field vernier machines (WFVMs), a novel self-excited topology is proposed in this paper which involves a four-pole main armature winding and a two-pole excitation winding connected in series using an ...
Syed Sabir Hussain Bukhari +6 more
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Nanomaterials, 2020 The generation of high order harmonics from femtosecond mid-IR laser pulses in ZnO has shown great potential to reveal new insight into the ultrafast electron dynamics on a few femtosecond timescale.
R. Hollinger +12 more
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