| 一种简化SVPWM 控制的死区分析与补偿方法 |
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| 引用本文： | 胡细波,王洪诚,王钰涵,王秀娟. 一种简化SVPWM 控制的死区分析与补偿方法[J]. 兵工自动化, 2012, 31(6): 66-69 |
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| 作者姓名： | 胡细波 王洪诚 王钰涵 王秀娟 |
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| 作者单位： | 西南石油大学电气信息学院,成都,610500;大港油田滩海开发公司,天津,300280 |
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| 基金项目： | 2011年国家青年自然科学基金“自律分散的电压/无功协调控制机理与方法研究”(5110710) |
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| 摘 要： | 为降低死区时间影响,提出一种简化的空间矢量脉冲宽度调制(space vector pulse width modulation,SVPWM)的电压型逆变器死区补偿方法。分析死区效应对输出电压和功率因数角的影响,通过坐标变换推导出参考向量在SVPWM各个扇区与相关向量的有效占空比,进而得到死区补偿方法,并采用DSP实验装置对补偿前后的电流波形进行对比分析。实验结果表明,该方法是正确、可行的。在高速时,补偿后的波形更接近标准波形;低速时,补偿后的波形更规则。
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| 关 键 词： | SVPWM 坐标变换 死区补偿 占空比 |
| 收稿时间： | 2013-03-07 |
A Dead-Time Analysis and Compensation MethodBased on Simplified SVPWM Control |
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| Hu Xibo , Wang Hongcheng , Wang Yuhan , Wang Xiujuan. A Dead-Time Analysis and Compensation MethodBased on Simplified SVPWM Control[J]. Ordnance Industry Automation, 2012, 31(6): 66-69 |
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| Authors: | Hu Xibo Wang Hongcheng Wang Yuhan Wang Xiujuan |
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| Affiliation: | 1.School of Electrical Information,Southwest Petroleum University,Chengdu 610500,China; 2.The Beach Development Company of CNPC in China,Tianjin 300280,China) |
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| Abstract: | In order to degrade the influence of dead-time,proposed a simplified space vector pulse width modulation(SVPWM) for voltage source inverter dead-time compensation method.Analyze the affection of dead-time effect to output voltage and power factor angle,after coordinate transform,by computing the related vector’s effective duty cycle of the reference vector in each SVPWM sector,we obtain dead-time compensation method and compare with the current waveform before and after compensation via DSP experiment instrument.The result of experiment verified the feasibility and correction of the compensation method.At high speed,the compensated waveform closer to the stander waveform;at low speed,the compensated waveform is more regular. |
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| Keywords: | SVPWM coordinate transform dead-time compensation duty cycle |
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