文章基本信息

标题：A Simple Switched-Coupled-Inductor Inverter for Boost DC-AC Conversion and Closed-Loop Regulation
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作者：Yuen-Haw Chang ; Kai-Lin Hsu ; Dian-Lin Ou 等
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：613-618
出版社：Newswood and International Association of Engineers
摘要：This paper presents a simple configuration of a closed-loop switched-coupled-inductor inverter (SCII) by combining a non-overlapping phase generator and a sinusoidal pulse-width-modulation (SPWM) controller in order to realize boost DC-AC conversion and low-power regulation. The power part is composed of two sub-circuits between supply VS and output VOUT, including: (i) a switched-copuled-inductor booster (one coupled inductor, two pumping capacitors, and one switch regulated by the phase generator circuit), and (ii) a half-bridge DC-link inverter (one filter capacitor, a load resistor, and two switches controlled by the SPWM controller), so as to obtain the maximum range of AC output: +[(1+nD)/(1-D)]VS ~ -nVS, where n is the turn ratio of the coupled inductor and D is duty cycle of charging this inductor. Practically, while D=0.42 and n=6, a symmetrical sinusoidal output: AC 100VRMS, 60Hz can be obtained at the supply of DC 24V. Besdies, the SPWM is employed to enhance regulation capability for the different output amplitude and frequency, as well as robustness to source or loading variation. Finally, the closed-loop SCII is designed and simulated by SPICE for some cases of steady-state and dynamic responses. All results are illustrated to show the efficacy of the proposed scheme.
关键词：switched;coupled;inductor inverter; boost DC;AC conversion; cloased;loop regulation; sinusoidal pulsewidth;modulation