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Right harmonic spectrum for the back-electromotive force of a n-phase synchronous motor [PDF]
Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting., 2004 This paper deals with a vector control of n-phase permanent magnet synchronous machine. To use control algorithms already developed for sine-wave 3-phase machines, the spectrum of back electromotive force (EMF) must contain only odd 2k+1 harmonics which verify the following inequality, 1 /spl les/ 2k+1 < n.
Semail, Eric +2 more
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Sensitivity of a 5-phase brushless DC machine to the 7th harmonic of the back-electromotive force
2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551), 2004 This paper presents a vector control of a 5-phase drive composed of a 5-leg pulse width modulation (PWM) voltage source inverter (VSI) supplying a permanent-magnet brushless DC (BLDC) machine with trapezoidal waveform of the back-electromotive force (EMF).
Semail, Eric +2 more
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Nantong Daxue xuebao. Ziran kexue banFractional-slot winding permanent magnet motors(PM) are widely applied due to their unique advantages,with the most notable being their high-quality sinusoidal no-load back electromotive force(EMF) waveform.
ZHENG Junqiang; XU Haoen; ZHANG Yuting; MAO Jingfeng
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Study on the process of preparing Al-Ce alloy by electrodeposition
Metalurgija, 2019 The process of Al-Ce alloy prepared by electrodeposition was studied in molten LiF-KCl-CeF3 salt at 820 °C. Several process parameters such as back electromotive force and current efficiency were measured by continuous pulse oscillograph.
J. D. Li +6 more
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Bulletin of NTU "KhPI". Series: Problems of Electrical Machines and Apparatus Perfection. The Theory and PracticeModern industry requires high-precision control of vibrating electromechanical systems, which are widely used in many industries. Variable load modes require the drive to have good control properties while maintaining the necessary energy parameters of the technological process.
Roman Bondar +2 more
core +4 more sources
EnergiesSimilar to armature back electromotive force (armature back-EMF), the back-EMF also exists in the field winding of hybrid excited machines. However, the existence of field back electromotive force (field back-EMF) is harmful to the safe and stable ...
Zhiyu Yang +5 more
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Design and Simulation Analysis of Stator Slots for Small Power Permanent Magnet Brushless DC Motors
International Transactions on Electrical Energy Systems, 2023 With the development of power electronics technology, permanent magnet brushless DC motors have developed rapidly and are now widely used in electric vehicles, flywheel energy storage, rail transit, and other applications.
Chuanhui Zhu +4 more
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Shape Optimization of Discontinuous Armature Arrangement PMLSM for Reduction of Thrust Ripple
Applied Sciences, 2021 The aim of this paper is to present the optimal design process and an optimized model for a discontinuous armature arrangement permanent magnet linear synchronous motor (PMLSM). The stator tooth shapes are optimized to reduce detent force. When the shape
Jun-Hwan Kwon +2 more
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IEEE Access, 2023 Variable frequency speed regulation technology is widely used in energy-saving control systems for fan and pump loads. Replacing mechanical adjustment devices such as valves with variable frequency speed regulation can effectively reduce energy ...
Jingyu Ma +4 more
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Energies, 2022 Double-sided permanent magnet linear synchronous machine with 120° phase belt toroidal windings (120°-TWDSPMLSM) suffers from large detent force due to the end effect and slot effect.
Jikai Si +4 more
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