| 基于载波相移THI-PWM技术的多电平逆变器研究 |
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| 引用本文： | 杨航,杨剑锋,王帅.基于载波相移THI-PWM技术的多电平逆变器研究[J].电测与仪表,2016,53(12):98-102. |
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| 作者姓名： | 杨航 杨剑锋 王帅 |
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| 作者单位： | 兰州交通大学自动化与电气工程学院,兰州,730070 |
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| 基金项目： | 甘肃省教育厅科研基金项目(2014A-045) |
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| 摘 要： | 针对传统的电压型多电平逆变器直流电压利用率低的问题,在对载波相移SPWM调制技术进行数学分析的基础上,将三次谐波注入(Third Harmonic Injection,THI)的思想引入到载波相移技术中,提出了一种适用于多电平逆变器的载波相移THI-PWM调制技术,使得系统的波形系数从1.732上升到2,直流电压利用率提升15%左右。在Matlab/Simulink中搭建了三相五电平逆变器模型进行仿真验证,结果证明了该方法理论的正确性和可行性。
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| 关 键 词： | 多电平逆变器 载波相移SPWM 直流电压利用率 三次谐波注入 |
| 收稿时间： | 2015/4/9 0:00:00 |
| 修稿时间： | 2015/4/9 0:00:00 |
Study of multilevel inverter based on carrier phase shifting THI-PWM technique |
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| YANG Hang,YANG Jianfeng and WANG Shuai.Study of multilevel inverter based on carrier phase shifting THI-PWM technique[J].Electrical Measurement & Instrumentation,2016,53(12):98-102. |
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| Authors: | YANG Hang YANG Jianfeng and WANG Shuai |
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| Affiliation: | College of Automation Electrical Engineering,Lanzhou Jiao Tong University,Lanzhou,730070,College of Automation Electrical Engineering,Lanzhou Jiao Tong University,Lanzhou,730070,College of Automation Electrical Engineering,Lanzhou Jiao Tong University,Lanzhou,730070 |
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| Abstract: | For the issue of low utilization rate of DC voltage on the traditional voltage source multilevel inverter , the idea of third harmonic injection ( THI) is introduced to the carrier phase shifting technique based on the mathematical analysis of carrier phase shifting SPWM modulation technique , and the carrier phase shifting THI-PWM modulation technique which is applicable to multilevel inverter is proposed , making form factor of the system rise from 1 .732 to 2 and the utilization rate of DC voltage increase by 15%.A three-phase five-level inverter simulation model is built in Matlab/Simulink , the simulation result demonstrates the correctness and the validity of the theory . |
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| Keywords: | multilevel inverter carrier phase shifting SPWM utilization rate of DC voltage third harmonic injection |
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