| 三电平逆变器空间矢量调制及中点电位平衡研究 |
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| 引用本文： | 张晔,汤钰鹏,王文军. 三电平逆变器空间矢量调制及中点电位平衡研究[J]. 电气传动, 2010, 40(2) |
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| 作者姓名： | 张晔 汤钰鹏 王文军 |
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| 作者单位： | 北京交通大学,电气工程学院,北京,100044;北京交通大学,电气工程学院,北京,100044;北京交通大学,电气工程学院,北京,100044 |
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| 摘 要： | 多电平逆变器在中高压大功率场合得到了广泛的研究和应用。研究了二极管钳位型三电平逆变器的拓扑结构和7段式空间矢量SVPWM调制方法。给出了参考矢量所在区域的判断方法,推导工作矢量的作用时间。为解决中点电位平衡问题,提出了一种充分利用冗余电压矢量的中点控制方法。通过仿真验证了所提方法的正确性和有效性。
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| 关 键 词： | 三电平逆变器 空间矢量脉宽调制 中点电位平衡 |
Research on SVPWM Method and Neutral-point Voltage Balance in Three-level Inverter |
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| ZHANG Ye,TANG Yu-peng,WANG Wen-jun. Research on SVPWM Method and Neutral-point Voltage Balance in Three-level Inverter[J]. Electric Drive, 2010, 40(2) |
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| Authors: | ZHANG Ye TANG Yu-peng WANG Wen-jun |
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| Affiliation: | School of Electrical Engineering;Beijing Jiaotong University;Beijing 100044;China |
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| Abstract: | The multilevel inverter has been studied and widely used in high power applications for medium or high voltage.The structure of the three-level NPC inverter and seven-stage SVPWM modulation was described.Introduced the judging method of which region the reference vector is located,deduced the duty time of each vector.To solve neutral-point voltage balancing problem,a control method fully utilizing redundant voltage vectors was proposed.The validity of proposed method is demonstrated by the simulation result... |
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| Keywords: | three-level inverter space vector pulse width modulation(SVPWM) neutral-point voltage balance |
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