Modelling and analysis of multistage switched-capacitor-voltage-multiplier boost DC-AC inverter

Author

Chang, Yuen-Haw

Author_Institution

Dept. of Comput. Sci. & Inf. Eng., Chaoyang Univ. of Technol., Taichung, Taiwan

fYear

2011

fDate

5-8 Dec. 2011

Firstpage

523

Lastpage

526

Abstract

A closed-loop m_c × n_c -stage switched-capacitor-voltage-multiplier boost inverter (SCVMI) is proposed by combining phase generator and sinusoidal-pulse-width-modulation (SPWM) control for low-power boost DC-AC conversion/regulation. The power unit contains: SCVM booster (front) and H-bridge (rear). This booster consists of two m_c -stage SC cells and two n_c -stage SC cells in series, and these cells are operated with two-phase interleaved non-overlapping clocks of phase generator for a conversion ratio of m_c × n_c at most. The H-bridge consists of 4 switches, and these are controlled by SPWM to realize full-wave DC-AC operation and output regulation. Further, the modelling and analysis of SCVMI are included. Finally, the closed-loop SCVMI is simulated, implemented, and tested. All the results are illustrated to show the efficacy of the proposed scheme.

Keywords

DC-AC power convertors; PWM invertors; bridge circuits; network analysis; switched capacitor networks; voltage multipliers; DC-AC regulation; H-bridge circuit; boost DC-AC inverter; closed loop switched capacitor voltage multiplier boost inverter; low power boost DC-AC conversion; multistage switched capacitor voltage multiplier; phase generator; sinusoidal pulse width modulation control; two phase interleaved nonoverlapping clock; Analytical models; Capacitors; Generators; Inverters; MOSFETs; Switches; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems (PEDS), 2011 IEEE Ninth International Conference on

Conference_Location

Singapore

ISSN

2164-5256

Print_ISBN

978-1-61284-999-7

Electronic_ISBN

2164-5256

Type

conf

DOI

10.1109/PEDS.2011.6147299

Filename

6147299