| 基于小波分析的无刷直流电机PWM生成技术的研究 |
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| 引用本文： | 王群京,姜卫东,赵涛,倪有源. 基于小波分析的无刷直流电机PWM生成技术的研究[J]. 系统仿真学报, 2004, 16(8): 1857-1860 |
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| 作者姓名： | 王群京 姜卫东 赵涛 倪有源 |
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| 作者单位： | 1. 合肥工业大学电气工程与自动化学院,合肥,230009
2. 合肥工业大学电气工程与自动化学院,合肥,230009;安徽大学自动化系,合肥,230039 |
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| 基金项目： | 安徽省“十五”攻关项目资助(01012010) |
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| 摘 要： | 提出了基于小波分析的无刷直流电机的PWM波形生成方法。在对电机的电流数据进行采样以后,利用离散小波变换分析和逆变换来分析电机电流得到高频分量,分析了PWM与生成的高频分量的关系。并利用高频分量抑止电流的谐波分量。构造了一个逆变换器来实现对高频分量的抑止效果。仿真结果看来,这种控制方法很好的抑止了电机的电流脉动,使之更加接近于方波,并且电机转速也相应的更加趋于平稳。
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| 关 键 词： | 无刷直流电机 小波分析 PWM 电流脉动 |
| 文章编号： | 1004-731X(2004)08-1857-04 |
| 修稿时间： | 2003-09-25 |
PWM Strategy for BLDCM Based on Wavelet Analysis |
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| WANG Qun-jing,JIANG Wei-dong,ZHAO Tao,,NI You-yuan. PWM Strategy for BLDCM Based on Wavelet Analysis[J]. Journal of System Simulation, 2004, 16(8): 1857-1860 |
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| Authors: | WANG Qun-jing JIANG Wei-dong ZHAO Tao NI You-yuan |
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| Affiliation: | WANG Qun-jing1,JIANG Wei-dong1,ZHAO Tao1,2,NI You-yuan1 |
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| Abstract: | The paper presents a PWM strategy based on wavelet analysis for BLDCM. The detailed components are acquired by wavelet analysis and inverse transform on the current of the motor. The paper analyzes the relationship between PWM and acquired high-frequency components. An inverter is constructed to improve the harmonic spectrum of the current by damping the high-frequency components using these components. The simulation shows that the approach in the paper can decrease current ripple so well that the current is almost square wave and that the speed of the motor is more stable correspondingly. |
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| Keywords: | brushless DC motor wavelet analysis PWM current ripple |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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