A SPWM algorithem with symetrical shoot-through states for Z/quasi-Z source inverters

doi:10.1049/cp.2019.0569

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	A SPWM algorithem with symetrical shoot-through states for Z/quasi-Z source inverters
	Wei, Xianglin 1,3; Zhu, Miao 2; Wang, Han 2; Li, Xiuyi 2; Chen, Wei 1; Huang, Surong 3
	2019
会议日期	October 24, 2019 - October 25, 2019
会议地点	Shanghai, China
关键词	Electric inverters Switching Capacitor voltages Carrier based PWM Double Carrier PWM Output performance Shoot-through Source inverters Switching sequence Switching signals
卷号	2019
期号	CP764
DOI	10.1049/cp.2019.0569
英文摘要	A novel PWM algorithm with symmetrical shoot-through states for multiphase Z/quasi-Z source inverters is proposed, which is based on three carriers. Besides the basic triangle carrier, the upper carrier and the lower carrier are respectively constructed by up-shifting and down-shifting the basic carrier; then according to the size of phase modulation wave, the most appropriate carrier is selected to compare it with the modulation wave for switching signal of the phase leg. In half a switching cycle, two symmetrical shoot through intervals are distributed at the transitions from active state to null state, being in conventional null state but not at the centre, which makes the switching times reduced significantly but the output performance almost same as that of SBC PWM. The shoot through of phase leg takes place only in the biggest phase and smallest phase, so that the overlap of shoot through intervals in double carrier PWM will no longer occur in treble carrier PWM. The study demonstrates that treble carrier PWM is the modification of SBC PWM by optimizing the switching sequences, that switching times is reduced significantly, also lower ripple in inductor current and capacitor voltage is got. © 2019 Institution of Engineering and Technology. All rights reserved.
会议录	IET Conference Publications
会议录出版者	Institution of Engineering and Technology, United States
语种	英语
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/118117]
专题	兰州理工大学
作者单位	1.College of Electrical and Information Engineering, Lanzhou Univ.of Tech., Lanzhou, China; 2.School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China 3.Mechanical Engineering and Automation Institute, Shanghai University, Shanghai, China;
推荐引用方式 GB/T 7714	Wei, Xianglin,Zhu, Miao,Wang, Han,et al. A SPWM algorithem with symetrical shoot-through states for Z/quasi-Z source inverters[C]. 见:. Shanghai, China. October 24, 2019 - October 25, 2019.