Title :
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
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;
Conference_Titel :
Circuits and Systems, 1991., IEEE International Sympoisum on
Print_ISBN :
0-7803-0050-5
DOI :
10.1109/ISCAS.1991.176548
