| 闭环SPWM逆变器死区效应分析 |
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| 引用本文： | 陈良亮,肖岚,龚春英,严仰光.闭环SPWM逆变器死区效应分析[J].电源学报,2004,2(3):219-223. |
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| 作者姓名： | 陈良亮 肖岚 龚春英 严仰光 |
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| 作者单位： | 南京航空航天大学航空电源航空科技重点实验室， 南京， 210016;南京航空航天大学航空电源航空科技重点实验室， 南京， 210016;南京航空航天大学航空电源航空科技重点实验室， 南京， 210016;南京航空航天大学航空电源航空科技重点实验室， 南京， 210016 |
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| 基金项目： | 国家航空科学基金资助项目(01F52032)，国家自然科学基金资助项目(50337030) |
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| 摘 要： | 本文通过对基于瞬时输出电压反馈控制的SPWM逆变器死区效应造成的谐波电压的分析，建立了考虑死区效应时的SPWM逆变器闭环控制模型，研究了逆变桥臂死区时间对闭环控制SPWM逆变器输出基波电压的影响。分析结果表明，对于闭环SPWM逆变器，逆变器输出基波电压在空载时随着死区时间的增加而增加，其阻性负载时的外特性曲线是一条先下降后上升的曲线。仿真和实验结果证明了理论分析的正确性。
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| 关 键 词： | 死区效应 闭环控制 SPWM逆变器 外特性 |
| 收稿时间： | 2004/5/13 0:00:00 |
Analysis of Dead-Time Effects for Close-Loop Controlled SPWM Inverter |
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| Chen Liangliang,Xiao Lan,Gong Chunying and Yan Yangguang.Analysis of Dead-Time Effects for Close-Loop Controlled SPWM Inverter[J].Journal of power supply,2004,2(3):219-223. |
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| Authors: | Chen Liangliang Xiao Lan Gong Chunying and Yan Yangguang |
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| Affiliation: | Nanjing University of Aeronautics and Asrtonautics, Nanjing, 210016 China;Nanjing University of Aeronautics and Asrtonautics, Nanjing, 210016 China;Nanjing University of Aeronautics and Asrtonautics, Nanjing, 210016 China;Nanjing University of Aeronautics and Asrtonautics, Nanjing, 210016 China |
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| Abstract: | By means of the analysis on the additional harmonic voltage caused by the dead-time of SPWM inverter based on instantaneous output voltage feedback control, the close-loop control model of SPWM inverter with consideration of dead-time is established and the effects of dead-time on the fundamental output voltage of SPWM inverter are well researched in this paper. Analytical results based on the control model acquired in this paper illustrate that the modulus of the fundamental output voltage of SPWM inverter is increased with the increase of dead-time, the output characteristics of SPWM inverter under resistive load is a curve of decreasing firstly and then increasing with the increasing of inverter output current. Simulation and experimental results verify the correctness of theoretic analysis. |
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| Keywords: | Dead-time effects close-loop control SPWM inverter output characteristics |
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