| 非换相期间无刷直流电机转矩脉动分析与抑制 |
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| 引用本文： | 李怀兵,丑武胜,冯震. 非换相期间无刷直流电机转矩脉动分析与抑制[J]. 微电机, 2011, 44(4): 1-5 |
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| 作者姓名： | 李怀兵 丑武胜 冯震 |
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| 作者单位： | 北京航空航天大学机器人研究所,北京,100191 |
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| 基金项目： | 国家"863"计划项目 |
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| 摘 要： | 无刷直流电机的转矩脉动是影响其性能的重要因素。该文针对非换相期间的转矩脉动进行了分析,重点研究了PWM_ON调制方式时的转矩脉动。PWM信号为"OFF"时续流引起的转矩脉动占主要部分,非导通相续流在一定程度上可以补偿PWM关断时造成的转矩脉动。同时,提出使用滞环电流控制方法,采用该方法可以抑制非换相期间转矩脉动。通过仿真分析和实验验证了该方法和传统方法的差异,证明了该方法在非换相期间抑制转矩脉动的有效性。
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| 关 键 词： | 无刷直流电机 非换相转矩脉动 PWM_ON调制 滞环电流控制 续流 |
Analysis and Suppression of Torque Ripple During Non-commutation of Brushless DC Motor |
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| LI Huaibing,CHOU Wusheng,FENG Zhen. Analysis and Suppression of Torque Ripple During Non-commutation of Brushless DC Motor[J]. Micromotors, 2011, 44(4): 1-5 |
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| Authors: | LI Huaibing CHOU Wusheng FENG Zhen |
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| Affiliation: | LI Huaibing,CHOU Wusheng,FENG Zhen(Robotics Institute,Beihang University,Beijing 100191,China) |
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| Abstract: | Torque ripple is an important factor affecting the performance of Brushless DC motor(BLDCM).In this paper,the non-commutation torque ripple was analyzed,focusing on the torque ripple caused by PWM_ON modulation.The main part of the torque ripple was caused by the PWM_OFF,and the diode freewheeling of inactive phase can compensate the torque ripple to some extent.Meanwhile,hysteresis current control was proposed to suppress the non-commutation torque ripple.The simulation and experiment show the difference b... |
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| Keywords: | brushless DC motor(BLDCM) non-commutation torque ripple PWM_ON modulation hysteresis current control freewheeling |
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