| 基于SVPWM的Z源三电平逆变器升压能力分析 |
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| 引用本文： | 王晓刚,陈静云. 基于SVPWM的Z源三电平逆变器升压能力分析[J]. 广州大学学报(综合版), 2013, 0(6): 49-54 |
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| 作者姓名： | 王晓刚 陈静云 |
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| 作者单位： | 广州大学机械与电气工程学院,广东广州510006 |
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| 基金项目： | 广州市科技计划资助项目（2013J4100017）;广州市属高校科研计划资助项目（2012A034）;国家级大学生创新训练资助项目（201211078040） |
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| 摘 要： | 单级结构的Z源三电平中点钳位式逆变器将升压和逆变两个环节结合在一起，结构简单且效率高．文章对这种逆变器的空间矢量脉宽调制（SVPWM）方法进行了分析，指出逆变器在这种脉宽调制方法的作用下升压因子和调制因子存在相互制约的关系，从而限制了电压增益的最大值，影响了逆变器的升压能力，需进一步改进．仿真结果证明了理论分析的正确性．
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| 关 键 词： | Z源逆变器 三电平 中点钳位 空间矢量脉宽调制 |
Analysis of voltage boost capability of Z-source three-level inverter based on SVPWM |
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| WANG Xiao-gang,CHEN Jing-yun. Analysis of voltage boost capability of Z-source three-level inverter based on SVPWM[J]. Journal of Guangzhou University, 2013, 0(6): 49-54 |
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| Authors: | WANG Xiao-gang CHEN Jing-yun |
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| Affiliation: | (School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China) |
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| Abstract: | Single stage Z-source three-level neutral-point-clamped inverter combines voltage-boost and inversion functions, which has the advantages of simple structure and high efficiency. The inverter＇s space vector pulse width modulation method （SVPWM） is analyzed. Operated under this modulation method, the inverter＇s boost factor and modulation factor are interaetional. Consequently, the maximum value of voltage gain is limited and the voltage boost capability is affected. The topology or the PWM strategy needs to be improved. Simulation re- sults show that the theoretical analysis results are correct. |
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| Keywords: | Z-source inverter three-level neutral-point-clamped space vector pulse width modulation |
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