NDLI: Single-phase high-voltage gain switched LC Z-source inverters

Content Provider	IET Digital Library
Author	Bussa, Vinod Kumar Ahmad, Anish Singh, Rajeev Kumar Mahanty, Ranjit
Abstract	Recently, switched-inductor Z-source inverters (SL-ZSIs) have been reported to achieve high-voltage gain and good power inversion operation at low shoot-through duty ratio D as compared to conventional ZSI. As the SL-ZSIs have high passive component count, weight, volume and losses of the system increases that lead to reduction in efficiency. To address the issues of conventional ZSI and SL-ZSIs, two single-phase switched LC (SLC)-ZSIs (Type 1 SLC-ZSI and Type 2 SLC-ZSI) are proposed in this study to achieve high-voltage gains at low values of D with lower passive component count as compared to SL-ZSIs. At low values of D, modulation index M approaches to higher values which results into improved AC output at reduced harmonic distortion. Due to low passive component count in the proposed inverters, weight, volume and losses decreases resulting into increase in efficiency. The proposed inverters can be used in various DC–AC and DC–DC power conversions in renewable energy applications due to their high-voltage gain, better immunity to EMI noise and higher reliability. The detailed steady-state analysis of the two proposed SLC-ZSIs is given in this study. Scaled down experimentation has been carried out to verify the performance of the proposed inverters.
Starting Page	796
Ending Page	807
Page Count	12
ISSN	17554535
Volume Number	11
e-ISSN	17554543
Issue Number	Issue 5, May (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/11/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2017.0634
Journal	IET Power Electronics
Publisher Date	2017-12-21
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	DC–AC Power Conversion DC–DC Power Conversion EMI Noise Harmonic Distortion Invertors LC Circuit Modulation Index Passive Component Passive Network Power Electronics Power Inversion Operation Power Supply Renewable Energy Application Scaled down Experimentation Shoot-through Duty Ratio Single-phase High-voltage Gain Switched LC Z-source Inverter SLC-ZSI Steady-state Analysis Supervisory Circuit
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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