Year-end Sale % OFF 
Abstract
Current-fed switched inverter (CFSI) is a high-gain inverter topology suitable for applications which have limited input dc source voltage, e.g., roof-top solar applications. A very high step-up ratio between ac output and dc input along with inherent shoot-through protection makes it suitable for low-power stand-alone inverter applications. In this article, a novel interleaved topology for CFSI (ICFSI) is proposed to augment its power rating. A pulsewidth modulation (PWM) scheme is also proposed to drive the interleaved topology. Various modes of operation of ICFSI, along with the steady-state model and dynamic analysis, with the proposed PWM scheme, are reported. ICFSI, with the PWM scheme, results in a 33% increase in maximum ac gain as compared to CFSI. In this article, the small-signal model of ICFSI is also derived and verified. An analysis comparing the losses in CFSI and ICFSI is carried out. It is observed that interleaved operation improves the efficiency by 4% at 600 W. The proposed topology and analysis are verified with the experimental results obtained from a 600-W laboratory-developed prototype.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
