| 基于三电平逆变器的SVPWM控制算法研究 |
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| 引用本文： | 安彬,黄晓峰,张炜,李纪欣.基于三电平逆变器的SVPWM控制算法研究[J].电子测试,2019(18):37-39. |
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| 作者姓名： | 安彬 黄晓峰 张炜 李纪欣 |
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| 作者单位： | 太原市轨道交通发展有限公司,山西太原,030002;中电科华北网络信息安全有限责任公司,山西太原,030032 |
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| 摘 要： | 为了解决传统三电平逆变器SVPWM(Space VectorPWM,SVPWM)算法计算过程复杂、总谐波含量较高的问题,提出一种改进的SVPWM算法。改进的SVPWM算法将三电平逆变器空间矢量图以四边形进行扇区划分,通过矢量转换计算基本电压矢量作用时间,根据开关状态变换原则设计开关序列。仿真结果表明,运用改进的SVPWM算法后三电平逆变器可以正常输出波形稳定的三相交流电压,并且扇区判断时间变短、总谐波含量降低。
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| 关 键 词： | 三电平逆变器 SVPWM 扇区分割 矢量转换 开关序列 |
Research on SVPWM Control Algorithm Based on Three-Level Inverter |
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| An Bin,Huang Xiaofeng,Zhang Wei,Li Jixin.Research on SVPWM Control Algorithm Based on Three-Level Inverter[J].Electronic Test,2019(18):37-39. |
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| Authors: | An Bin Huang Xiaofeng Zhang Wei Li Jixin |
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| Affiliation: | (Taiyuan Rail Transit Development Co.,Ltd.,Taiyuan Shanxi,030002;CLP North China Network Information Security Co.,Ltd.,Taiyuan Shanxi,030032) |
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| Abstract: | In order to solve the problem of complex calculation process and high total harmonic content of traditional three-level inverter SVPWM(Space Vector PWM, SVPWM) algorithm,an improved SVPWM algorithm is proposed. The improved SVPWM algorithm divides the three-level inverter space vector into quadrilateral sectors, calculates the basic voltage vector action time by vector conversion, and designs the switch sequence according to the switch state transition principle. The simulation results show that the three-level inverter can output the stable three-phase AC voltage with the improved SVPWM algorithm, and the sector judgment time becomes shorter and the total harmonic content decreases. |
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| Keywords: | Three-level inverter SVPWM sector segmentation vector conversion switching sequence |
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