| Comparison of Three SVPWM Strategies |
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| 作者姓名： | Wei-Feng Zhang Yue-Hui Yu |
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| 作者单位： | with the Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China |
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| 基金项目： | 高等学校博士学科点专项科研项目 |
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| 摘 要： | Three space vector pulse width modulation （SVPWM） schemes, called 7-segment space vector modulation （SVM）, 5-segment SVM and 3-segment SVM are studied in this paper. The basic principle of SVPWM is presented. The switching sequence of different scheme is described. The modulation signals, DC bus voltage utilization, and output line voltage harmonic of these schemes are analyzed by the MATLAB software with different modulation index M and frequency modulation index N. The simulation results are analyzed and show that discontinuous modulating functions lead a reduction of switching actions. The DC bus voltage utilization of three schemes is almost the same. For all three SVM, the frequency modulation index N will affect the harmonic characteristic, and the modulation index M will affect DC bus voltage utilization and the harmonic content. The experiment is implemented by the DSP of TMS320F2812. The results validate three algorithms and the simulation.
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| 关 键 词： | 空间矢量 脉冲幅 开关 谐波 电压 |
| 修稿时间： | 2006-01-15 |
Comparison of Three SVPWM Strategies |
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| Wei-Feng Zhang Yue-Hui Yu.Comparison of Three SVPWM Strategies[J].Journal of Electronic Science Technology of China,2007,5(3):283-287. |
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| Authors: | Wei-Feng Zhang Yue-Hui Yu |
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| Abstract: | Three space vector pulse width modulation (SVPWM) schemes, called 7-segment space vector modulation (SVM), 5-segment SVM and 3-segment SVM are studied in this paper. The basic principle of SVPWM is presented. The switching sequence of different scheme is described. The modulation signals, DC bus voltage utilization, and output line voltage harmonic of these schemes are analyzed by the MATLAB software with different modulation index M and frequency modulation index N. The simulation results are analyzed and show that discontinuous modulating functions lead a reduction of switching actions. The DC bus voltage utilization of three schemes is almost the same. For all three SVM, the frequency modulation index N will affect the harmonic characteristic, and the modulation index M will affect DC bus voltage utilization and the harmonic content. The experiment is implemented by the DSP of TMS320F2812. The results validate three algorithms and the simulation. |
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| Keywords: | DC bus voltage utilization harmonic switching loss switching sequence space vector pulse width modulation |
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