无刷直流电机在不同驱动方式下的性能比较研究

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英文篇名：Comparative Study on Performance of Brushless DC Motor under Different Driving Modes 作者：王芳媛 ; 陈玲 英文作者：WANG Fang-yuan;CHEN Ling;Technical Skills Training Center of State Grid Hunan Electric Power Co.,Ltd.; 关键词：梯形波反电势 ; 正弦波反电势 ; 无刷直流电机 ; 正弦波驱动 ; 六脉冲方波驱动 英文关键词：Trapezoidal wave back EMF;;Sinusoidal wave back EMF;;Brushless DC motor;;Sinusoidal wave drive;;Six-pulse square wave drive 中文刊名：XXHG 英文刊名：The Journal of New Industrialization 机构：国网湖南省电力有限公司技术技能培训中心; 出版日期：2018-12-20 出版单位：新型工业化 年：2018 期：v.8;No.96 语种：中文; 页：XXHG201812004 页数：5 CN：12 ISSN：11-5947/TB 分类号：20-23+31

摘要

针对反电势为梯形波与正弦波的两种无刷直流电机,分析了电机分别在正弦波与六脉冲方波驱动模式下的机械特性、电流波形、换相转矩脉动。通过对这两种电机电流波形的对比分析,给出了这两种不同反电势波形的无刷直流电动机在高速和低速时两者电流波形、换相转矩脉动差异的原因。建立了两种电机的仿真模型,仿真结果进一步验证了分析的正确性。
        Based on two kinds of brushless DC motors of trapezoidal and sinusoidal wave back EMF, the article analyzes mechanical characteristics,current waveform and commutation torque ripple of motor driven by sinusoidal and six-pulse square wave.Based on comparison and analysis of two current waveforms of motors, the article analyzes reasons of current waveforms and commutation torque ripple difference of brushless DC Motor at high and low speeds under different back EMF waveforms, establishes simulation models of two motors, and simulation results verify correctness of analysis further.

引文

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