Three-level hysteresis band modulation strategy for single-phase PWM inverters

被引:10
|
作者
Bowes, SR [1 ]
Grewal, S [1 ]
机构
[1] Univ Bristol, Dept Elect & Elect Engn, Fac Engn, Bristol BS8 1TR, Avon, England
来源
关键词
D O I
10.1049/ip-epa:19990698
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A novel three-level adaptive hysteresis band modulation strategy for single-phase inverters is presented. It is shown that the total harmonic current distortion of the new strategy closely approximates that of the off-line precalculated harmonic minimised PWM switching angle solution sets. It is shown that the three-level adaptive hysteresis band strategy can be defined using a modulation process possessing both pulse-width and pulse-position modulation. Two strategies are presented to determine the switching angles in one quarter of the fundamental period of the PWM and the advantages of each method are discussed using a digital signal processor implementation. Both simulation and experimental results for the three-level adaptive hysteresis band PWM strategy are presented to confirm the theoretical analysis.
引用
收藏
页码:695 / 706
页数:12
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