| 无死区的特定谐波消除PWM控制策略的研究 |
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| 引用本文： | 孙琳琳,郝瑞祥,游小杰. 无死区的特定谐波消除PWM控制策略的研究[J]. 电气应用, 2008, 27(5) |
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| 作者姓名： | 孙琳琳 郝瑞祥 游小杰 |
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| 作者单位： | 北京交通大学电气工程学院,100044;北京交通大学电气工程学院,100044;北京交通大学电气工程学院,100044 |
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| 摘 要： | 特定谐波消除PWM控制策略是通过控制开关点的位置,消除特定次数的谐波,达到减少输出电压中谐波含量的目的。然而,加入死区时间,改变了开关时刻,影响了谐波消除的效果。因此提出了一种无死区的特定谐波消除PWM控制策略,优化输出波形,并利用Matlab/Simulink对所提的控制策略进行仿真,验证了控制方法的正确性。
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| 关 键 词： | 特定谐波消除 N-型结构 P-型结构 死区时间 |
A Strategy of No-Dead-Time Control in SHEPWM |
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| Sun Linlin. A Strategy of No-Dead-Time Control in SHEPWM[J]. Electrotechnical Application, 2008, 27(5) |
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| Authors: | Sun Linlin |
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| Affiliation: | Beijing Jiaotong University |
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| Abstract: | SHEPWM is a method eliminate the selected order harmonic and reduce the harmonic component in output voltage by controlling switching time sequence. But the dead-time which we have to add will change the switching time. And as a result, the SHEPWM does not work efficietively. No-dead-time control strategy in selective harmonic eliminate PWM is presented, which optimizes the output waveform. The feasibility of the strategy of no-dead-time is confirmed by simulation of Matlab. |
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| Keywords: | SHEPWM N-cell P-cell dead-time |
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