Results 241 to 250 of about 106,319 (304)
Optimization of tangential interior brushless DC motor rotor for hybrid vehicles. [PDF]
Sci RepLi X, Zhang Y, Wu J.
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2021 IEEE Energy Conversion Congress and Exposition (ECCE), 2021
The switched reluctance motors (SRMs) are attractive because they are free from the permanent magnet. However, the application of the SRMs is hindered by a trade-off relation among the large torque ripple, radial force ripple, DC current ripple, and copper loss. A recent study revealed that the above issues can be solved by optimizing the phase-current
Takayuki Kusumi, Eiji Hiraki
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The switched reluctance motors (SRMs) are attractive because they are free from the permanent magnet. However, the application of the SRMs is hindered by a trade-off relation among the large torque ripple, radial force ripple, DC current ripple, and copper loss. A recent study revealed that the above issues can be solved by optimizing the phase-current
Takayuki Kusumi, Eiji Hiraki
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2020 IEEE Energy Conversion Congress and Exposition (ECCE), 2020
This paper proposes a torque ripple, DC current ripple, and radial force ripple reduction method with five-phase switched reluctance motor (SRM). The proposed method makes these three ripples simultaneously zero, which is so-called "triple zero" in this paper, by improving control flexibility with five-phase.
Takahiro Kumagai +2 more
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This paper proposes a torque ripple, DC current ripple, and radial force ripple reduction method with five-phase switched reluctance motor (SRM). The proposed method makes these three ripples simultaneously zero, which is so-called "triple zero" in this paper, by improving control flexibility with five-phase.
Takahiro Kumagai +2 more
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Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems, 2018
Force feedback and shape change are modalities with a growing application potential beyond the more traditional GUIs. We present two studies that explored the effect of these modalities on the emotional experience when interacting with an intelligent thermostat.
Van Oosterhout, Anke +2 more
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Force feedback and shape change are modalities with a growing application potential beyond the more traditional GUIs. We present two studies that explored the effect of these modalities on the emotional experience when interacting with an intelligent thermostat.
Van Oosterhout, Anke +2 more
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Source Independence of Force Ripple in Linear Induction Machines
IEEE Transactions on Industry Applications, 2020In this article, it is shown that in a linear induction machine (LIM), the force ripple that arises due to the magnetic asymmetry does not depend on whether the LIM is being fed from a voltage source or a current source. When the LIM is fed from a three-phase balanced voltage source, the primary voltage is balanced but the LIM draws an unbalanced ...
Angshudeep Majumdar +1 more
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Reduction of force ripples in PM planar actuator
The XIX International Conference on Electrical Machines - ICEM 2010, 2010Specific electromagnetic actuators are now widely used. In order to meet design constraints in terms of performance and cost, the studies of such converters must be carried out using dedicated models. This paper deals with the study of a permanent magnet actuator with Multiple Degrees of Freedom (MdoF).
G. Krebs +4 more
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Ripple Dynamics and Benthic Transformations Under Variable Wave Forcing
2007Abstract : Previous work has shown that sound penetration into sandy sediments at low grazing angles is enhanced when ripples are present on the seafloor. In addition, ripples may change effective seafloor roughness and cause strong wave/current attenuation.
Mark W. Schmeeckle +2 more
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Adaptive feedforward compensation of force ripples in linear motors
Control Engineering Practice, 2005In this paper, an adaptive control scheme is proposed to reduce force ripple effects impeding motion accuracy in Permanent Magnet Linear Motors (PMLMs). The displacement periodicity of the force ripple is first obtained by using a Fast Fourier Transform (FFT) analysis.
Zhao, S., Tan, K.K.
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FORCE RIPPLE COMPENSATION OF LINEAR SYNCHRONOUS MOTORS
Asian Journal of Control, 2008Linear synchronous motors are finding expanded use in high-performance applications where high speed and high accuracy is essential. The main problem in improving the tracking performance of linear synchronous motors is the presence of force ripple caused by mismatched current waveforms and unbalanced motor phases or amplifier gains.
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