The new and precise control base on Z-source inverter

	The new and precise control base on Z-source inverter
	Dang, Cunlu; Liu, Hu; Zhang, Xiaoying
	2013
关键词	Z-source inverter Modulation Strategy Traditional zero vector Shoot-through states Switching frequency
页码	5183-5188
英文摘要	This article in-depth analyzes the control character of the Z-source inverter in photovoltaic power generation system. According to these problems of the dynamic performance of the Z-source inverter output and boosting controlling strategy lead to double switched frequency etc. A new improved boosting modulation strategy is presented. Based on SVPWM, changing turning on or off time of the same bridge switches to insert 6 shoot-through states in the single-cycle of traditional zero vector. Compared with the conventional boosting modulation strategy, the modulation is not only to stabilize the output performance of Z source inverter in a certain extent, and can effectively reduce the switching frequency. In addition, According to inaccurate problem of inserting the shoot-through time for traditional modulation strategy, this article presents the strategy to control accurately the shoot-through time through the slope of the modulation signal, to make Z -source inverter more controllable. These advantages of improved precision boosting modulation strategy are verified by simulation and experiment
会议录	2013 25TH CHINESE CONTROL AND DECISION CONFERENCE (CCDC)
会议录出版者	IEEE
会议录出版地	345 E 47TH ST, NEW YORK, NY 10017 USA
语种	英语
WOS研究方向	Automation & Control Systems
WOS记录号	WOS:000326977305047
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36933]
专题	电气工程与信息工程学院
通讯作者	Dang, Cunlu
作者单位	Lanzhou Univ Technol, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Dang, Cunlu,Liu, Hu,Zhang, Xiaoying. The new and precise control base on Z-source inverter[C]. 见:.