A modulation method for capacitor voltage ripple reduction of the switched-capacitor inverter using series/parallel conversion

Youhei Hinago, Hirotaka Koizumi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

A modulation method for capacitor voltage ripple reduction of the switched-capacitor inverter using series/parallel conversion (SCISPC) is proposed. The phase shifted pulse width modulation (PWM) method and the level shifted PWM method are applied to the proposed modulation method. The two capacitors in the 7-level SCISPC is charged alternately by this modulation method. The voltage ripple of these capacitors can be small because the discharging term becomes short. The switching frequency of the proposed modulation method can be reduced. The high efficiency power conversion of the SCISPC is achieved because of the low voltage ripple of the capacitors. The effect of the proposed modulation method is confirmed by the simulation with PSIM and the circuit experiment. The voltage ripple reduction of the capacitors is 33.7% in the simulation result.

Original languageEnglish
Title of host publicationProceedings - ICIT 2011
Subtitle of host publication2011 IEEE International Conference on Industrial Technology
Pages105-109
Number of pages5
DOIs
Publication statusPublished - 18 May 2011
Event2011 IEEE International Conference on Industrial Technology, ICIT 2011 - Auburn, AL, United States
Duration: 14 Mar 201116 Mar 2011

Publication series

NameProceedings of the IEEE International Conference on Industrial Technology

Conference

Conference2011 IEEE International Conference on Industrial Technology, ICIT 2011
CountryUnited States
CityAuburn, AL
Period14/03/1116/03/11

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Hinago, Y., & Koizumi, H. (2011). A modulation method for capacitor voltage ripple reduction of the switched-capacitor inverter using series/parallel conversion. In Proceedings - ICIT 2011: 2011 IEEE International Conference on Industrial Technology (pp. 105-109). [5754355] (Proceedings of the IEEE International Conference on Industrial Technology). https://doi.org/10.1109/ICIT.2011.5754355