A new nonlinear feedforward compensation for feedback controlled DC-DC converters

Author

Marino, Pompeo ; Vasca, Francesco

Author_Institution

Dipartimento di Inf. e Sistemistica, Univ. degli Studi di Napoli Federico II, Italy

fYear

1993

fDate

20-24 Jun 1993

Firstpage

728

Lastpage

734

Abstract

A feedforward-feedback control technique for PWM (pulse width modulated) DC-DC converters is proposed. A linear state feedback is designed via a linear quadratic approach by means of a small-signal linearized model of the converter. The nonlinear feedforward compensation is designed so as to compensate for the output voltage error in the presence of either small or high input voltage disturbances. Several simulation results confirm the effectiveness of the proposed controller

Keywords

DC-DC power convertors; PWM power convertors; compensation; feedback; feedforward; voltage control; PWM; feedback controlled DC-DC converters; high input voltage disturbances; linear quadratic approach; linear state feedback; nonlinear feedforward compensation; output voltage error; pulse width modulated; simulation; small-signal linearized model; Adaptive control; DC-DC power converters; Force measurement; Pulse width modulation; Pulse width modulation converters; Regulators; State feedback; Steady-state; Switching converters; 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.1993.472005

Filename

472005