Title :
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
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;
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
DOI :
10.1109/ICECS.1999.812250
