文章基本信息

标题：A Closed-Loop Coupled-Inductor Cockcroft-Walton-Switched-Capacitor Inverter for Boost DC-AC Conversion
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作者：Yuen-Haw Chang ; Kai-Lin Hsu
期刊名称：Lecture Notes in Engineering and Computer Science
印刷版ISSN：2078-0958
电子版ISSN：2078-0966
出版年度：2018
卷号：2233&2234
页码：675-680
出版社：Newswood and International Association of Engineers
摘要：A coupled-inductor Cockcroft-Walton-switchedcapacitor (CICWSC) inverter is proposed by combining a nonoverlapping circuit and sinusoidal pulse-width-modulation (SPWM) controller for boost DC-AC conversion and closedloop regulation. The power part between source VS and of VO is composed of three sub-circuits, including: (i) coupled-inductor booster (CI booster), (ii) Cockcroft-Walton-switched-capacitor doubler (CWSC doubler), and (iii) half-bridge DC-link, so as to obtain an AC output range: +[(n+1)/(1-D)]VS ~-[(n+1)/(1-D)]VS , where D is the duty cycle and n is the turn ratio of coupled inductor. While D=0.5, n=2, the practical range of VO can be obtained as: +6VS~-6VS. Here, the SPWM is employed not only to enhance regulation capability for the different amplitude and frequency of VO, but also to reinforce robustness to source or loading variation. Finally, the closed-loop CICWSC is designed and simulated by SPICE for cases of steady-state and dynamic responses. All results are illustrated to show the efficacy of the proposed scheme.
关键词：coupled;inductor; Cockcroft;Walton;switchedcapacitor; sinusoidal pulse;width;modulation; boost DC;AC conversion;