摘要
针对单相全桥PWM逆变器,在研究单相逆变电源电压矢量的基础上,首次将空间矢量脉宽调制(SVP-WM)技术应用于单相PWM逆变电源,并给出了单相SVPWM算法的DSP实现方法.通过对单相逆变电压调制信号的频谱分析,给出了单相SVPWM算法的谐波倍频特性;通过对单相SVPWM零电压矢量的分析,提出了一种开关模式优化的单相SVPWM算法;通过对单相SVPWM零序信号的分析,论证了单相SVPWM与载波PWM的统一.实验结果验证了单相SVPWM算法的有效性.
For the control of single-phase （S. P. ） PWM inverter, the Space- Vector PWM technique was applied to S. P. inverter based on the S. P. inverter voltage space vector analysis. And the realization method for S. P. SVPWM technique was described in details. Through the spectrum analysis of S. P. SVPWM waveform, a doubled harmonic frequence property of the S.P. SVPWM technique was shown. Through the disposal of zero voltage vector, a optimal switching SVPWM technique was brought forward. Through the analysis of zero-sequence signal for S. P. carder modulation, the equivalent of space-vector based modulation and carder based modulation was proved. Finally, the experiment was taken to prove those ideals in this paper.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2007年第12期2289-2293,共5页
Acta Electronica Sinica
基金
湖南省自然科学基金(No.05JJ40001)
关键词
逆变器
空间矢量脉宽调制
零序信号
DSP
inverter
space-vector pulse width modulation
zero-sequence signal
digital signal processor
