Comparison of two high efficiency DC-to-AC converters

Author

Edelmoser, K.H. ; Himmelstoss, F.A.

Author_Institution

Power Electron. Sect., Tech. Univ. Wien, Austria

Volume

1

fYear

1999

fDate

1999

Firstpage

169

Abstract

Two high efficiency DC-to-AC inverters for stand alone and direct AC mains connection are described and compared. The structures use only off-line switches to generate the AC voltage. The overall efficiency of the inverters depend to a high degree on the number of switching elements in the current path. The structures here presented have only one active switch in the main current path. Due to the arrangements of the components, the modulator switch and the DC-to-AC switches are collected together. Improvement of efficiency is only due to the improved topology and not due to overdimensioning of the semiconductors. As a result of the improved efficiency the converters are well suited for solar and renewable energy as well as for aerospace applications. The efficiency improvement compared to a conventional full bridge converter is documented by measurements

Keywords

DC-AC power convertors; PWM invertors; PWM power convertors; switching circuits; DC-to-AC switches; active switch; aerospace applications; high efficiency DC-to-AC converters; inverter topologies; modulator switch; offline switches; renewable energy applications; Bridge circuits; Capacitors; Frequency; Pulse width modulation; Pulse width modulation inverters; Semiconductor diodes; Switches; Switching converters; Topology; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 1999. Proceedings of ICECS '99. The 6th IEEE International Conference on

Conference_Location

Pafos

Print_ISBN

0-7803-5682-9

Type

conf

DOI

10.1109/ICECS.1999.812250

Filename

812250