Results 171 to 180 of about 2,679 (216)
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A Novel Energy Harvester in a Backpack via Precision Sensing of Back Electromotive Force
ASME 2020 29th Conference on Information Storage and Processing Systems, 2020Abstract In this paper, swop fly-back converter, a new type of fly-back converter, was proposed. It is controlled by constant-on time, a strategy of pulse frequency modulation with boundary conduction mode. Due to the structure of swop fly-back converter and the boundary conduction mode control strategy, the energy delivery to battery is
W.-W. Yen, Paul C.-P. Chao
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Analysis of a Symmetrical Nine-phase Machine with Highly Non-Sinusoidal Back-Electromotive Force
IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society, 2018In this paper a two-pole surface permanent magnet synchronous machine (PMSM) with a symmetrical nine-phase winding configuration is investigated. Magnets on rotor are shortened which causes production of highly non-sinusoidal back- electromotive force (EMF) in the stator windings.
Marko Slunjski +2 more
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Taguchi Robust Design of Back Electromotive Force Considering the Manufacturing Tolerances in IPMSM
2012 Sixth International Conference on Electromagnetic Field Problems and Applications, 2012This paper presents the robust design of back electromotive force (EMF) characteristic analysis considering the manufacturing tolerances of the permanent magnets (PM) in the interior permanent magnet synchronous motor (IPMSM). We choose the design variables that make an impact on the EMF, and then perform the robust design of EMF using the Taguchi ...
Su-Jin Lee +5 more
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Generator Back-Electromotive-Force Shaping for DC Output with Low Ripple Voltage
2019 IEEE International Electric Machines & Drives Conference (IEMDC), 2019An integrated generator-rectifier system has been shown to be beneficial in reducing ac-to-dc conversion loss at megawatt power level. The architecture incorporates passive and active rectifiers into a multi-port permanent magnet synchronous generator.
Qichen Jin, Phuc Huynh, Arijit Banerjee
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2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe), 2017
This paper proposes, as a control scheme of a switched reluctance motor, back electromotive force control (back-EMF control for the abbreviation) in order to reduce the vibration and the acoustic noise of a switched reluctance motor. In back-EMF control, the winding current is kept around the current reference without switching the power devices in a ...
Yosuke Murakami, Nobukazu Hoshi
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This paper proposes, as a control scheme of a switched reluctance motor, back electromotive force control (back-EMF control for the abbreviation) in order to reduce the vibration and the acoustic noise of a switched reluctance motor. In back-EMF control, the winding current is kept around the current reference without switching the power devices in a ...
Yosuke Murakami, Nobukazu Hoshi
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Research of speed-torque characteristics of brushless DC motor based on back electromotive force
2015 18th International Conference on Electrical Machines and Systems (ICEMS), 2015Speed-torque characteristics of brushless DC motors with trapezoidal and sinusoidal back electromotive force (EMF) based on two devices conducted drive method are analyzed separately. A back EMF coefficient using the average value during conduction region is used to calculate the speed-torque characteristics with real back EMF.
Hou Hongsheng, Liu Weiguo
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Shaped Time-Optimal Feedback Control for Disk-Drive Systems With Back-Electromotive Force
IEEE Transactions on Magnetics, 2004In this paper, we describe the design of closed-loop control laws for disk-drive systems that account for back-electromotive force (back-EMF) by using a phase-plane approach. The time-optimal control law for a rigid body is shaped by using input shaping ideas to address the flexible mode, and then the altered rigid body phase-plane trajectories ...
C. La-orpacharapan, L.Y. Pao
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Sensorless control of synchronous reluctance drive based on extended back electromotive force model
2016 International Symposium on Industrial Electronics (INDEL), 2016This paper presents an overview and systematic analysis of various design methods for obtaining the observer corrective action gains for stable and precise estimation of synchronous reluctance motor speed. The structure of the reduced order observer consider stator current and extended back electromotive force vectors as observer state variables in ...
Vladimir Popovic +4 more
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IEEE Transactions on Industrial Electronics, 2013
In this paper, the inter-turn short circuit fault detection in permanent magnet synchronous machines (PMSM) using an open-loop physics-based back electromotive force (EMF) estimator is presented. The back EMF estimator is designed based upon a current mode tracking scheme.
Ali Sarikhani, Osama A. Mohammed
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In this paper, the inter-turn short circuit fault detection in permanent magnet synchronous machines (PMSM) using an open-loop physics-based back electromotive force (EMF) estimator is presented. The back EMF estimator is designed based upon a current mode tracking scheme.
Ali Sarikhani, Osama A. Mohammed
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IEEE Transactions on Industrial Electronics, 2017
This paper proposes a new torque control strategy to reduce torque ripple of brushless dc motor. All possible combinations of terminal voltages are obtained from different switching states of the inverter during normal conduction period and commutation period.
Tingna Shi +4 more
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This paper proposes a new torque control strategy to reduce torque ripple of brushless dc motor. All possible combinations of terminal voltages are obtained from different switching states of the inverter during normal conduction period and commutation period.
Tingna Shi +4 more
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