|本期目录/Table of Contents|

[1]陈健,于慎波.无刷直流电机 PWM_ON_PWM 调制方式 转矩特性研究 [J].电机与控制学报,2016,20(08):48-54.[doi:10. 15938 / j. emc. 2016. 08. 007]
 CHEN Jian,YU Shen-bo.Torque characteristic of brushless DC motors by PWM_ON_PWM modulation [J].,2016,20(08):48-54.[doi:10. 15938 / j. emc. 2016. 08. 007]
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无刷直流电机 PWM_ON_PWM 调制方式 转矩特性研究
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
20
期数:
2016年08
页码:
48-54
栏目:
出版日期:
2016-08-02

文章信息/Info

Title:
Torque characteristic of brushless DC motors by PWM_ON_PWM modulation

作者:
陈健 于慎波
( 沈阳工业大学 国家稀土永磁电机工程技术研究中心,辽宁 沈阳 110870)
Author(s):
 CHEN Jian YU Shen-bo
 ( National Engineering Research Center for REPM Electrical Machines,Shenyang University of Technology, Shenyang 110870,China)
关键词:
无刷直流电机 PWM_ON_PWM 调制方式 换相转矩脉动 非换相转矩脉动
Keywords:
brushless DC motors PWM_ON_PWM modulation commutation torque ripple non-commuta-tion torque ripple
分类号:
TM 351
DOI:
10. 15938 / j. emc. 2016. 08. 007
文献标志码:
A
摘要:
转矩脉动是影响无刷直流电机性能的重要因素。对 PWM_ON_PWM 调制方式换相区间与 非换相区间转矩脉动进行计算与分析,并与其它经常使用的四种调制方式进行对比,以寻求低转矩 脉动的最佳 PWM 调制策略。在换相区间,推导了转矩脉动的解析表达式,绘制了转矩脉动随占空 比 D 的变化曲线,提出根据不同转速采用不同调制方式的控制方法。在非换相区间,分析了关断 相续流和非导通相续流产生的条件,总结了不同 PWM 调制方式非换相转矩脉动的规律,论述了采 用 PWM_ON_PWM 调制方式对非换相转矩脉动的影响。最后对一台 10kW 无刷直流电机转矩脉动 进行测试,验证了所提结论的正确性。
Abstract:
Torque ripple is an important factor affecting the performance of brushless DC motors ( BLD-CM) . The commutation and non-commutation torque ripple were calculated and analyzed caused by PWM-ON-PWM modulation. And compared with other often used four PWM modes,modulation strategy of the least torque ripple was found. In the commutation interval,the analytical expressions of torque rip-ple were induced,the curve was drawn with different modulation modes and duty cycle,and the control strategy was proposed using different modulation methods according to the different speed. In the non-commutation interval,the conditions were analyzed caused by diode freewheeling of the floating phase and inactive phase,the rules were summarized torque ripple changed with different control strategy,and the effects of using PWM-ON-PWM modulation were discussed on non-commutation torque ripple. Last,a rig for the 10kW motor was built for test,and the experimental results were provided to demonstrate the valid-ity of the proposed conclusion.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2015 - 03 - 10
基金项目: 国家自然科学基金( 51175350l,51307111) ; 沈阳市科学技术计划项目( F15 - 199 - 1 - 13)
作者简介: 陈 健( 1982—) ,男,博士研究生,研究方向为永磁电机振动噪声的抑制;
于慎波( 1958—) ,男,教授,博士生导师,研究方向为永磁电机振动噪声的计算。
更新日期/Last Update: 2016-10-28