Research on a Time-Variant Shoot-Through Modulation Strategy for Quasi-Z-Source Inverter
发表时间:2018-11-13 点击次数:
所属单位:电子信息工程学院
发表刊物:IEEE TRANSACTIONS ON POWER ELECTRONICS
关键字:Efficiency pulse width modulation (PWM) quasi-z-source inverter (qZSI) shoot-through zero state
摘要:This letter proposes a time-variant shoot-through pulse width modulation strategy for the traditional modulation techniques used in quasi-Z-source inverters. By introducing the proposed strategy into the traditional modulation techniques, like the simple boost modulation, the bus voltage amplitude can be reduced at the nonpeak areas, and the switching loss can be greatly saved to improve system efficiency. Because the output voltage gain can still be guaranteed, the waveform quality is not influenced. At the same time, for the traditional zero states in the proposed strategy are fully used as the shoot-through zero states, the switching times can be evidently reduced and the system efficiency can be further increased. Theoretical analysis and experimental results are presented to verify the real performance.
ISSN号:0885-8993
是否译文:否
发表时间:2018-11-01
合写作者:Wu, Qibin,Li, Zikai,洪峰
通讯作者:周玉斐
发表时间:2018-11-01