| 三电平逆变器SVPWM的死区补偿和窄脉冲处理 |
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| 引用本文： | 徐华,高菊玲,何礼高.三电平逆变器SVPWM的死区补偿和窄脉冲处理[J].电力电子技术,2012,46(1):26-28. |
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| 作者姓名： | 徐华 高菊玲 何礼高 |
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| 作者单位： | 1. 南京航空航天大学,自动化学院,江苏南京210016
2. 江苏农林职业技术学院,江苏句容,212400 |
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| 摘 要： | 以电压型三电平逆变器为例,分析了基于电压空间矢量脉宽调制(SVPWM)三电平逆变器的死区效应及窄脉冲对三电平逆变电路的影响,给出了一种根据输出电流极性修改触发脉冲,从而达到死区时间补偿的方法。在最小脉宽处理区域,通过重新确定起始矢量处理方法避免窄脉冲。仿真和实验结果验证了理论的可行性。
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| 关 键 词： | 逆变器 死区补偿 窄脉冲 矢量控制 |
The Dead-time and Narrow Pulse Compensation of Three-level Inverter Based on SVPWM |
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| XU Hua
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GAO Ju-ling
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HE Li-gao.The Dead-time and Narrow Pulse Compensation of Three-level Inverter Based on SVPWM[J].Power Electronics,2012,46(1):26-28. |
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| Authors: | XU Hua GAO Ju-ling HE Li-gao |
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| Affiliation: | 1(1.Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | Taking the voltage type three-level inverter as an example,the dead time and narrow pulse effect of the three-level inverter based on the space vector pulse width modulation(SVPWM) are analyzed and a way recomposing the driving pulse according to the phase of current for the dead time compensation is provided.In the region of nar-row pulse,the beginning vector is rehandled to avoid the narrow pulse.The Matlab simulation and experimental results prove the feasibility of the theory. |
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| Keywords: | inverter dead-time compensation narrow pulse vector control |
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