Generalized Multicell Switched-Inductor and Switched-Capacitor Z-Source Inverters

Traditional voltage-source inverter is limited by its only voltage step-down operation, while current-source inverter is limited by its only current step-down mode. In order to add an extra boosting flexibility while keeping the number of active semiconductors unchanged, voltage-type and current-typ...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2013-02, Vol.28 (2), p.837-848
Main Authors: Ding Li, Poh Chiang Loh, Miao Zhu, Feng Gao, Blaabjerg, F.
Format: Article
Language:English
Subjects:
Applied sciences
Boosting
Cascaded inverters
Circuit properties
Educational institutions
Electric currents
Electric noise
Electric, optical and optoelectronic circuits
Electrical engineering. Electrical power engineering
Electronic circuits
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronic mail
Electronics
Exact sciences and technology
Flexibility
Inductors
Inverters
Magnetic devices
multicell inverters
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Semiconductors
Simulation
switched-capacitor (SC)
switched-inductor (SL)
Switches
Switching, multiplexing, switched capacity circuits
Topology
Transformers and inductors
Z-source inverters
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Description
Summary:Traditional voltage-source inverter is limited by its only voltage step-down operation, while current-source inverter is limited by its only current step-down mode. In order to add an extra boosting flexibility while keeping the number of active semiconductors unchanged, voltage-type and current-type Z-source inverters were earlier proposed. These new classes of inverters are generally more robust and less sensitive to electromagnetic noises. However, their boosting capabilities are somehow compromised by high component stresses and poorer spectral performances caused by low modulation ratios. Their boosting gains are, therefore, limited in practice. To overcome these shortcomings, the generalized switched-inductor and switched-capacitor Z-source inverters are proposed, whose extra boosting abilities and other advantages have already been verified in simulation and experiment.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2012.2204776