Fixed frequency sliding mode modulator for current mode PWM inverters

Author

Silva, J. Fernando ; Paulo, Sónia S.

Author_Institution

Inst. Superior Tecnico, Tech. Univ. of Lisbon, Portugal

fYear

1993

fDate

20-24 Jun 1993

Firstpage

623

Lastpage

629

Abstract

A fixed frequency current mode PWM modulator that provides output current limiting in sliding mode voltage controlled DC-AC power converters is presented. The modulator is considerably simpler than previous solutions and well adapted for sliding mode control, which is advantageous when the inverter feeds nonlinear or wide ranging loads and performs as a switching power operational amplifier or power operational transconductance amplifier

Keywords

DC-AC power convertors; PWM invertors; electric current control; load (electric); modulators; operational amplifiers; power amplifiers; switching circuits; variable structure systems; voltage control; DC-AC power converters; current mode PWM inverters; fixed frequency current; nonlinear loads; output current limiting; power operational transconductance amplifier; sliding mode modulator; switching power operational amplifier; wide ranging loads; Current limiters; Frequency conversion; Frequency modulation; Operational amplifiers; Power amplifiers; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Sliding mode control; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1993. PESC '93 Record., 24th Annual IEEE

Conference_Location

Seattle, WA

Print_ISBN

0-7803-1243-0

Type

conf

DOI

10.1109/PESC.1993.471991

Filename

471991