Study on an improved SVPWM algorithm

被引：0

作者：

Wu, Li-Hua ^{[1
]}

Gao, Hui-Zhi ^{[1
]}

Liu, Zheng ^{[1
]}

Yang, Ming-Ling ^{[1
]}

机构：

[1] Higher Edu. Key Lab. for Measuring and Control Technol. and Instrumentations of Heilongjiang Prov., Harbin University of Science and Technology, Harbin 150080, China

来源：

Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2013年 / 17卷 / 04期

关键词：

Induction motors - Vector control (Electric machinery) - Vectors - Vector spaces - Voltage control;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

It has a low efficiency and numerous harmonic for the SPWM (space pulse width modulation) algorithm. The structure of SVPWM algorithm is complex. Aiming at these problems, an improved SVPWM (space vector pulse width modulation) algorithm is studied in this paper. Using simple addition, subtraction and logical operations with the two input orthogonal sinusoidal voltages Uα and Uβ, it got the sector where the synthetic vector was located. Then the action time of basis synthetic vector in this sector could be obtained by means of looking up the table, and thus the action time of three-phase synthetic circular flux was calculated. According to the principle of pulse width modulation, the circular flux pulse could be output. So the algorithm was realized. The results of simulations show that the algorithm is correct. And the algorithm applied in the asynchronous motor system is realized the function.

引用

页码：57 / 63

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