| 三相逆变器统一空间矢量PWM实现方法 |
| |
| 引用本文： | 文小玲,尹项根,张哲.三相逆变器统一空间矢量PWM实现方法[J].电工技术学报,2009,24(10). |
| |
| 作者姓名： | 文小玲 尹项根 张哲 |
| |
| 作者单位： | 1. 华中科技大学电气与电子工程学院,武汉,430074;武汉工程大学电气信息学院,武汉,430074
2. 华中科技大学电气与电子工程学院,武汉,430074 |
| |
| 摘 要： | 通过分析空间矢量脉宽调制(SVPWM)和载波PWM方法之间的内在关系,建立了包含各种连续和不连续SVPWM及SPWM方法的显性调制函数表达式,从而提出了基于载波的统一SVPWM实现方法.并且,在此基础上提出了一种三相逆变器统一SVPWM快速算法.该算法直接利用三相参考电压瞬时值计算PWM信号的开关状态切换时间,不需进行坐标变换、三角函数运算、扇区判断和有效矢量作用时间的计算等,因此更易于各种SVPWM方法的数字化实现.最后,对三相逆变器在SPWM和各种SVPWM控制方式下的输出电压谐波特性进行了对比分析.仿真和实验结果表明本文提出的三相逆变器统一空间矢量PWM实现方法是可行的和有效的.
|
| 关 键 词： | 空间矢量脉宽调制 载波PWM 调制函数 快速算法 谐波分析 |
Unified Space Vector PWM Implementation Method for Three-Phase Inverters |
| |
| Wen Xiaoling,Yin Xianggen,Zhang Zhe.Unified Space Vector PWM Implementation Method for Three-Phase Inverters[J].Transactions of China Electrotechnical Society,2009,24(10). |
| |
| Authors: | Wen Xiaoling Yin Xianggen Zhang Zhe |
| |
| Affiliation: | Wen Xiaoling1,2 Yin Xianggen1 Zhang Zhe1 (1. Huazhong University of Science , Technology Wuhan 430074 China 2. Wuhan Institute of Technology Wuhan 430074 China) |
| |
| Abstract: | The relationship between space vector pulse width modulation (SVPWM) and carrier-based PWM methods is comprehensively analyzed. The explicit modulation function expression, in which various continuous and discontinuous SVPWM strategies are intuitively embodied, is established, and a unified carrier-based SVPWM method is presented. Furthermore, a unified SVPWM fast algorithm for three-phase inverters is proposed. The proposed algorithm calculates the actual gating times for each inverter leg directly by use ... |
| |
| Keywords: | SVPWM carrier-based PWM modulation function fast algorithm harmonic analysis |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
