| 快速空间矢量PWM控制算法的研究 |
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| 引用本文： | 郑征,陶海军.快速空间矢量PWM控制算法的研究[J].电气应用,2006,25(8):38-40. |
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| 作者姓名： | 郑征 陶海军 |
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| 作者单位： | 河南理工大学电气工程与自动化学院,454003 |
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| 摘 要： | 分析了电压空间矢量PWM的基本原理,提出了一种改进的基于空间矢量PWM的快速算法。把参考电压经2/3坐标变换,根据三相参考电压的符号和作用时间来判断扇区,该算法不需要正弦函数和反正切函数计算。同时通过零矢量作用时间的适当分配可以连续调整不开关扇区的位置,使开关损耗达到最小,且程序运算速度明显提高。经仿真证明了其可行性。
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| 关 键 词： | 空间矢量 开关损耗 算法 脉宽调制 |
| 修稿时间： | 2005年10月17 |
Studying of Control Algorithm for Fast Space Vector PWM |
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| Zheng Zheng.Studying of Control Algorithm for Fast Space Vector PWM[J].Electrotechnical Application,2006,25(8):38-40. |
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| Authors: | Zheng Zheng |
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| Affiliation: | Henan Polytechnic University |
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| Abstract: | The basic principle of Voltage Space V ector PWM is analyzed and an imp roved algorithm for voltage-source SVPWM is proposed.Through two-three trans ition,sectors are judged according to sign and duty time of three-phase refere nce voltage,there is no sine function and arctan function calculation.At the same time the positions of the non-switching sectors can be adjusted continuous ly by allocating the duty time of the two zero vectors properly,the minimum swi tching losses can be reached,and program operating speed is improved effectivel y.This has been shown in the simulation results. |
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| Keywords: | space vector switching losses algorithm PWM |
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