Affiliation of Author(s):电子信息工程学院

Journal:IET Power Electron.

Abstract:In this study, an integrated control strategy is proposed which can be widely used in two-stage boost inverters, and an improved two-stage boost inverter is taken as an example to present the proposed integrated control idea. The presented inverter can operate in four quadrants, which can realise grid-connected or stand-alone inverter. With improved control strategy, it not only can reduce the number of switching times and improve the efficiency but also can reduce the harmonic contents of bridge arm voltage and further decrease the volume and weight of the filter. Therefore, the presented inverter still has the advantages in efficiency and volume when compared with single-stage boost inverters. The operating principle, harmonic analysis, simulation and experiments are provided in this study. A 500 W prototype is established and tested, and the results of simulation and experiments verify the correctness of the theoretical analysis. © The Institution of Engineering and Technology 2019

ISSN No.:1755-4535

Translation or Not:no

Date of Publication:2019-08-07

Co-author:Zhu, Peng,Ji, Baojian

Correspondence Author:Hong Feng