| 多电平逆变器空间矢量控制算法的研究 |
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| 引用本文： | 罗方利,韩如成,李宁.多电平逆变器空间矢量控制算法的研究[J].云南民族大学学报(自然科学版),2014(3):227-231. |
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| 作者姓名： | 罗方利 韩如成 李宁 |
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| 作者单位： | 太原科技大学电子信息工程学院,山西太原030024 |
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| 基金项目： | 太原科技大学研究生科技创新项目（20125017）. |
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| 摘 要： | 针对60°坐标系空间矢量脉宽调制算法在求解合成矢量对应开关状态时存在较大计算量的问题,提出了一种优化算法,该算法按照开关频率优化原则设计参考电压在(0,π/3)范围内对应的开关状态,然后通过交替相序和取反的方法获取参考电压在整个电压周期内对应的开关状态.优化算法不仅提高了效率,而且还有利于增强输出波形的正弦对称性.利用Matlab搭建了五电平逆变器模型,对提出的简化算法进行仿真,仿真结果验证了算法的正确性和有效性.
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| 关 键 词： | 多电平 空间矢量 60°坐标系 级联型 |
Space vector modulation algorithm of the multilevel inverter |
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| LUO Fang-li,HAN Ru-cheng,LI Ning.Space vector modulation algorithm of the multilevel inverter[J].Journal of Yunnan Nationalities University:Natural Sciences Edition,2014(3):227-231. |
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| Authors: | LUO Fang-li HAN Ru-cheng LI Ning |
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| Institution: | (College of Electronic Information Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China) |
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| Abstract: | When calculating the switch state of synthetic vectors, there is still a large amount of calculation in the space vector pulse width modulation algorithm of 60° coordinate system. In order to solve this problem, this paper proposes an optimization algorithm. This algorithm designs the switch state of the reference voltage ranging from 0 to π/3, and then obtains the switch state of the whole rang of reference voltage by using the method of alternating phase sequence and inversion. This algorithm not only improves the efficiency, but also enhances the sinusoidal symmetry of the output. It uses the Matlab to build a simulation model of a five - level inverter. The simulation re- suits verify the accuracy and effectiveness of this algorithm. |
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| Keywords: | muhi - level space vector 60° coordinate system cascade |
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