Results 191 to 200 of about 3,397 (222)

Research on Commutation Torque Ripple Suppression of Open-winding Brushless DC Motor

2019 IEEE 3rd International Electrical and Energy Conference (CIEEC), 2019
The open-winding brushless dc motor has no neutral point, and the phase windings are electrically isolated, which can realize independent control of each phase. Firstly, the mathematical model of open-winding brushless dc motor is introduced, the influence of each phase caused by the mutual inductance and the impact of the diode freewheeling for non ...
Huang Qi, Luo Ling, Zhang Yuan
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Commutation torque ripple reduction in a position sensorless brushless DC motor drive

2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551), 2004
This paper presents a novel method to reduce commutation torque ripple in a position sensorless brushless DC (BLDC) motor drive. To compensate the commutation torque ripple completely, conventional methods should know commutation interval, so that they need current sensors.
null Kwang-Woon Lee, null Dae-Kyong Kim, null Tae-Duck Kim, null Jae-Young Choi   +3 more
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Commutation Torque Ripple Reduction for Brushless DC Motors Based on Optimal Control

2018 IEEE 4th Southern Power Electronics Conference (SPEC), 2018
A method based on optimal control is proposed to reduce the commutation torque ripple of brushless dc motors (BLDCMs) in this paper. The theoretical background on optimal control and its design process when applied to BLDCM for commutation torque ripple reduction are given.
Jian Liang, Yao Sun, Mei Su, Sijie Ning, Min Zhou, Hanbing Dan, Guo Xu   +6 more
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Torque ripple reduction technique with commutation time control for brushless DC motor

8th International Conference on Power Electronics - ECCE Asia, 2011
This paper proposes the reduction technique of commutation torque ripple in brushless DC motor drive. The proposed method modulates the current slope of the incoming phase and the outgoing phase in commutation interval respectively. These slopes can be modulated by using specific duty ratio during commutation.
Jun-Ho Kim, Jin-Sik Park, Myung-Joong Youn, Gun-Woo Moon   +3 more
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Commutation Torque Ripple Suppression of BLDCM Based on Quasi-Y-Source Net

2019 IEEE 3rd Conference on Energy Internet and Energy System Integration (EI2), 2019
A novel control strategy based on quasi-Y-source net is proposed for the high commutation torque ripple of brushless direct current motors (BLDCM). The quasi-Y-source net is connected to the input of the inverting bridge and the output voltage of the quasi-Y-source net after boosting is used as direct current (DC) link voltage to drive the BLDCM during
Hui Wang, Lawu Zhou, Feilong Li, Hao Guo, Ling Li, Yu Liang   +5 more
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Torque Ripple Minimization in Switched Reluctance Motor by Optimal Commutation Strategy Using a Novel Reference Torque

Electric Power Components and Systems, 2002
Torque ripple control of switched reluctance motor has been the main issue in the application of this motor. Conventional proportional plus integration, proportional plus integration and differentiation, variable structure proportional plus integration, and recently, feed-back linearization control techniques with number of reference torques have been ...
Jawad Faiz, Gh. Soltani-Khosroshahi
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A discrete-time controller for the reduction of commutation torque ripple in BLDCM drives

2016 IEEE International Conference on Industrial Technology (ICIT), 2016
In this paper, a control strategy for the current loop of brushless DC motor (BLDCM) drives is proposed to reduce the commutation torque ripple. The proposed method consists of two different controllers based on dead-beat structure. Two different electrical model of BLDCM for conducting and commutation periods are considered by the controllers that are
Türker, Türker, Khudhair, Ihsan Obayes Khudhair   +1 more
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Commutation torque ripple suppression strategy for brushless DC motors with commutation time in multiples of PWM period

2017 IEEE International Electric Machines and Drives Conference (IEMDC), 2017
In this paper, a commutation torque ripple suppression strategy is proposed with commutation time in multiples of PWM period. Firstly, the commutation time of different modulation strategies required to suppress commutation torque ripple is analyzed, and the main factors that influence commutation time are pointed out.
Guokai Jiang, Changliang Xia, Wei Chen, Tingna Shi   +3 more
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Pulse-width modulation technique for BLDCM drives to reduce commutation torque ripple without calculation of commutation time

2010 IEEE Energy Conversion Congress and Exposition, 2010
This paper presents a three-phase pulse-width modulation technique for brushless DC motor drives to reduce the commutation torque. As compared to previous approaches, the presented technique doesn't require any torque observer and calculation of commutation time which may be sensitive to motor parameters and require more calculation time.
Yong-Kai Lin, Yen-Shin Lai
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A Novel Self Correction Torque and Commutation Ripples Reduction in BLDC Motor

2018
Brushless DC motor has permanent magnets in the rotor side that rotates around fixed armature. The current rotates in armature continuously as it is electronically commutated. The motor’s efficiency will otherwise reduce due to commutation angle errors. The novelty of the work is to reduce commutation errors that are obtained based on commutation point
Megha S. Pillai, K. Vijina
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