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:2019
卷号:2239
页码:279-284
出版社:Newswood and International Association of Engineers
摘要:This paper presents a simple configuration of
Greinacher-doubler-based switched-coupled-inductor inverter
(GSCII) by combining a non-overlapping phase generator and a
sinusoidal pulse-width-modulation (SPWM) controller in order
to realize boost DC-AC conversion and closed-loop regulation.
The power part is composed of two sub-circuits between supply
VS and output VO, including: (i) a Greinacher-doubler-based
switched-copuled-inductor booster (one coupled inductor, four
capacitors, and one switch regulated by the phase generator),
and (ii) a half-bridge DC-link inverter (one output capacitor, a
load resistor, and two switches controlled by the SPWM
controller) , so as to obtain the maximum range of AC output:
+[(n+1)/(1-D)]VS ~-[(n+1)/(1-D)]VS, where n is the turn ratio
of the coupled inductor and D is duty cycle of charging this
inductor. When n=2 and D=0.5, the DC-AC conversion from
DC 24V to AC 100VRMS, 60Hz can practically be achieved.
Furthermore, 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 GSCII 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.