PWM strategy for switching loss reduction in a high frequency link DC to AC converter

Author

Rodrigues, Marta A. ; Da Silva, Edison R. ; Jacobina, Cursino B. ; Lima, Antônio M N

Author_Institution

Dept. of Electr. Eng., Fed. Univ. of Paraiba, Campina Grande, Brazil

Volume

2

fYear

1999

fDate

1999

Firstpage

789

Abstract

This paper presents a non-resonant high frequency DC to AC converter with a cycloconverter at the secondary of the transformer. The principles of a hybrid modulator previously utilized with inverters are applied to the cycloconverter together with nonresonant ZVS and ZCS techniques. A PWM pattern is introduced so that soft switching is obtained not only during the change from one switching interval to another but also within the interval. Simulated and experimental results verify the feasibility of the proposed scheme

Keywords

DC-AC power convertors; PWM invertors; cycloconvertors; losses; power transformers; switching circuits; transformer windings; HF link DC-AC power converter; PWM pattern; PWM strategy; cycloconverter; inverters; nonresonant ZCS technique; nonresonant ZVS technique; soft switching; switching interval; switching loss reduction; transformer secondary; Analog-digital conversion; Digital modulation; Frequency conversion; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Switching converters; Switching loss; Zero current switching; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE

Conference_Location

Charleston, SC

ISSN

0275-9306

Print_ISBN

0-7803-5421-4

Type

conf

DOI

10.1109/PESC.1999.785600

Filename

785600