International Journal of Power Electronics and Drive Systems (IJPEDS)
Vol 13, No 1: March 2022

A family of switched-impedance network enhanced-boost quasi-Z-source inverters

Vadthya Jagan (Vignana Bharathi Institute of Technology)
Mithun Kumar Reddy Alpuri (Vignana Bharathi Institute of Technology)
Mandava Neeharika (Vignana Bharathi Institute of Technology)
Cheruku Swetha (Vignana Bharathi Institute of Technology)
Pedekala Mahendar (Vignana Bharathi Institute of Technology)
Sharmili Das (Indian Institute of Technology Roorkee)



Article Info

Publish Date
01 Mar 2022

Abstract

This paper proposes a family of novel enhanced-boost quasi-Z-source inverters (EB-qZSIs). For the similar input voltage and shoot-through duty ratio, similar to that of enhanced-boost Z-source inverter/enhanced-boost qZSIs, the presented topologies provide very high voltage boost at high modulation index with improved quality output waveform. Compared to EB-ZSI and EB-qZSIs, these topologies provide less capacitors stress, which reduce the volume and cost of the system. Akin to traditional EB-qZSIs, the presented novel impedance networks share joint ground with the source and inverter bridge, also reduces the initial inrush current. Among the four types of proposed configurations, the type-1 of discontinuous input current (DIC) EB-qZSIs offers fewer stress athwart the capacitors and little inrush current at start-up condition. Consequently, type-1 is considered and illustrated for the examination, simulation, and hardware execution. The steady-state operation and derivation of boost factor, peak direct current-link (DC-link) voltage and capacitor voltages are derived for both continuous conduction mode (CCM) and discontinuous conduction modes (DCM). The Z-network elements design, and evaluation with other Z-networks are also carried out. Lastly, the hypothetical investigation is confirmed with simulation and experimental tests.

Copyrights © 2022






Journal Info

Abbrev

IJPEDS

Publisher

Subject

Control & Systems Engineering Electrical & Electronics Engineering

Description

International Journal of Power Electronics and Drive Systems (IJPEDS, ISSN: 2088-8694, a SCOPUS indexed Journal) is the official publication of the Institute of Advanced Engineering and Science (IAES). The scope of the journal includes all issues in the field of Power Electronics and drive systems. ...