Improved Z-Source Inverter With Reduced Z-Source Capacitor Voltage Stress and Soft-Start Capability

This paper proposes an improved Z-source inverter topology. Compared to the traditional Z-source inverter, it can reduce the Z-source capacitor voltage stress significantly to perform the same voltage boost, and has inherent limitation to inrush current at startup. The control strategy of the propos...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on power electronics 2009-02, Vol.24 (2), p.409-415
Main Authors: Tang, Y, Xie, S, Zhang, C, Xu, Z
Format: Article
Language:English
Subjects:
Applied sciences
Capacitors
Capacitors. Resistors. Filters
Circuit topology
Dielectric, amorphous and glass solid devices
Electric currents
Electric potential
Electric power
Electrical engineering. Electrical power engineering
Electrical equipment
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Exact sciences and technology
Inductors
Inrush current
Inverters
Network topology
Power conversion
Power electronics, power supplies
Resonance
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
soft start
Strategy
Stress
Stresses
Surges
Topology
Various equipment and components
Voltage
Z-source inverter
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper proposes an improved Z-source inverter topology. Compared to the traditional Z-source inverter, it can reduce the Z-source capacitor voltage stress significantly to perform the same voltage boost, and has inherent limitation to inrush current at startup. The control strategy of the proposed Z-source inverter is exactly the same as the traditional one, so all the existing control strategy can be used directly. A soft-start strategy is also proposed to suppress the inrush surge and the resonance of Z-source capacitors and inductors. The operation principle of the proposed topology and comparison with the traditional topology are analyzed in detail. Simulation and experimental results are given to demonstrate the new features of the improved topology.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2008.2006173