Results 11 to 20 of about 2,155,111 (338)
Wide-Speed Range Operation of PM Vernier Machines Using Wye and Wye-Delta Winding Configurations [PDF]
IEEE Access, 2020 This paper proposes two permanent magnet vernier machines (PMVM) operation modes, for wide-speed and high efficiency operation. In mode-1, the machine operates as a conventional PMVM with a wye connected stator winding mode. In mode-2, the machine stator
Arsalan Arif +3 more
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Machine Learning-Based Backpressure Unstart Prediction and Warning Method for Combined Cycle Engine Hypersonic Inlet-Oriented Wide Speed Range [PDF]
International Journal of Aerospace EngineeringInlet unstart prediction and warning are strictly crucial to the operation of hypersonic engines, especially for combined cycle engines where implementation across a wide speed range poses significant challenges.
Ke Min +5 more
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Journal of Electrical Systems and Information Technology, 2018 The main objective of this paper is to ameliorate the performance of direct torque control of induction motor for a wide range of speed control using fuzzy logic. The major drawbacks of conventional direct torque control are high torque, flux ripples and
Sudheer H., Kodad S.F., Sarvesh B.
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Shock wave enhanced turbulent mixing in a wide-speed-range strut-based scramjet combustor [PDF]
Propulsion and EnergyThe efficient mixing of fuel and oxidizer in a scramjet combustor is a critical issue for achieving future wide-speed-range flight. A numerical study is conducted using Reynolds-averaged Navier–Stokes equations coupled with shear stress transport k-ω ...
Xiaofei Niu, Qian Chen
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Design and analysis of a hybrid permanent magnet variable leakage flux motor for low core loss and wide speed range [PDF]
AIP AdvancesIn this paper, a new hybrid permanent magnet variable leakage flux (VLF-HPM) motor is proposed. In order to enhance motor speed range, short arc-shaped and elliptical-shaped magnetic barriers are placed on the q-axis magnet circuit, realizing the so ...
Mingwei Yang +6 more
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Spillage-Adaptive Fixed-Geometry Bump Inlet of Wide Speed Range
Aerospace, 2021 In this work, a new spillage-adaptive bump inlet concept is proposed to widen the speed range for hypersonic air-breathing flight vehicles. Various approaches to improve the inlet start-ability are summarized and compared, among which the bump-inlet ...
Zonghan Yu +3 more
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Regression Model-Based Flux Observer for IPMSM Sensorless Control with Wide Speed Range
Energies, 2021 A new linear regression form is derived for a flux observer and a position observer is designed. In general, the observability of the permanent-magnet synchronous motor is lost at zero speed.
Jongwon Choi
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Wide-Speed-Range Sensorless Control of IPMSM
Electronics, 2022 A wide-speed-range sensorless control for an IPMSM is deeply studied in this paper, which combines the high-frequency injection (HFI) method and sliding-mode observer (SMO) method. At low-speed range, a rotating high-frequency voltage signal is injected into the IPMSM; the rotor position can be estimated by the HFI method based on the saliency of the ...
Weibin Yang +5 more
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CES Transactions on Electrical Machines and Systems, 2022 In this paper, a novel intensifying-flux variable flux-leakage interior permanent magnet (IFVF-IPM) machine is proposed, in which flux barriers were designed deliberately between the adjacent poles to obtain intensifying-flux effect and variable flux ...
Xiping Liu +3 more
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An Adjustable Wide-Range Speed-Control Method for Sensorless IPMSM Drive Systems
IEEE Access, 2022 This paper proposes an adjustable wide-range speed-control method for sensorless IPMSM drive systems from standstill, low-speeds, middle-speeds, and high-speeds in the flux-weakening region.
Muhammad Syahril Mubarok, Tian-Hua Liu
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