Fractal Based Space Vector PWM for Multilevel Inverters—A Novel Approach
Fractal Based Space Vector PWM for Multilevel Inverters—A Novel Approach
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DOI：
10.1109/tie.2008.2008340
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发表时间：
2009-04
影响因子：
7.7
通讯作者：
A. Gopinath;M. S. Aneesh;M. Baiju
中科院分区：
文献类型：
--
作者：
A. Gopinath;M. S. Aneesh;M. Baiju
提出了一种基于分形法的多电平逆变器空间矢量脉宽调制(SVPWM)技术。本文提出了多电平逆变器空间矢量位置具有分形结构的观点，并利用这种分形结构的性质和分形算法的简单性来产生SVPWM。所提出的方法不使用任何查找表来识别扇区。交换空间向量也直接确定，而不使用任何查找表。该方案可以推广到n电平逆变器，并给出了一种推广算法。以五电平逆变器为例，阐述了多电平逆变器空间矢量脉宽调制的产生方法，并给出了三电平逆变器的实验结果。
A space vector pulsewidth-modulation (SVPWM) technique based on fractal approach for multilevel inverters is presented. This paper proposes a view that the space vector locations of multilevel inverters possess a fractal structure, and the properties of fractal structure together with the simplicity of fractal arithmetic are exploited to generate the SVPWM. The proposed method does not use any lookup tables for sector identification. The switching space vectors are also directly determined without using any lookup tables. The proposed scheme can be extended to an n-level inverter, and a generalized algorithm is also presented. The proposed scheme for generating SVPWM for multilevel inverters is explained for a five-level inverter, and experimental results are presented for a three-level inverter.