Large-signal modelling and control in bidirectional switching converters

Author

Martínez, Luis ; Majó, Joan ; Poveda, Albert ; De Vicuna, Luís García ; Guinjoan, Francisco ; Sánchez, Antonio F. ; Marpinard, Jean Claude ; Valentin, Max

Author_Institution

Univ. Politecnica de Cataluna, Barcelona, Spain

fYear

1991

fDate

11-14 Jun 1991

Firstpage

1061

Abstract

The large-signal control problem in bidirectional switching converters is analyzed. After modeling a bidirectional Cuk converter as a bilinear system, the integration of converter state equations and the subsequent introduction of a linear recurrence between the output variable and an external reference signal leads to a nonlinear control law which is implemented by means of one analog divider, standard operational amplifiers and a pulse-width modulator. As a result, the output variable proportionally follows the reference signal. This allows the availability of different types of power waveforms in the converter output

Keywords

power convertors; pulse width modulation; switching circuits; Cuk converter; analog divider; bidirectional switching converters; bilinear system; converter state equations; external reference signal; large-signal control problem; linear recurrence; nonlinear control law; operational amplifiers; output variable; power waveforms; pulse-width modulator; Control systems; Difference equations; Nonlinear equations; Nonlinear systems; Pulse amplifiers; Pulse width modulation converters; Regulators; Switches; Switching converters; Telecommunication control;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1991., IEEE International Sympoisum on

Print_ISBN

0-7803-0050-5

Type

conf

DOI

10.1109/ISCAS.1991.176548

Filename

176548