Title :
Notching current source AC/AC converters for soft switched PWM
Author :
Da Silva, Edison R C
Author_Institution :
Dept. of Electr. Eng., Federal Univ. of Paraiba, Brazil
Abstract :
This paper presents new DC link notching current AC/AC converters with the feature of variable flat-topped current pulse width. Notches in the link current allow the front rectifier and current source inverter switches to commutate at zero crossing and to synchronize with the PWM strategy. Part of these new topologies have the additional ability to operate with adjustable notch width without any increase in the devices´ voltage stress. Design considerations for implementation of the converter and simulated results are presented
Keywords :
AC-AC power convertors; PWM power convertors; rectifiers; rectifying circuits; switching circuits; PWM strategy synchronisation; adjustable notch width; current source inverter switches; front rectifier switches; notching current source AC/AC converters; soft switched PWM; variable flat-topped current pulse width; voltage stress; zero crossing commutation; Analog-digital conversion; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Rectifiers; Stress; Switches; Switching converters; Topology; Voltage;
Conference_Titel :
Industry Applications Society Annual Meeting, 1994., Conference Record of the 1994 IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-1993-1
DOI :
10.1109/IAS.1994.377540
