State feedback exact linearization control of Buck-Boost converter

Author

Shuai Ding-xin

Author_Institution

Coll. of Electr. & Inf. Eng., Panzhihua Univ., Panzhihua, China

fYear

2014

fDate

5-8 Nov. 2014

Firstpage

1490

Lastpage

1494

Abstract

A nonlinear affine model of Buck-Boost converter is set up. It is testified that the model is satisfied the controllability condition and the involutivity condition, and the nonlinear system of the Buck-Boost converter is said to be input-state linearizable. Further, the nonlinear output function and the state feedback law are derived. The selecting of feedback coefficient is analyzed in details based on conventional classical control theory. The proposed control method do not need voltage PI controller, and is simple compared with other nonlinear control method used in DC-DC converter. Numerical simulation results are also reported, which allows a comparison between the exact linearization approach and other nonlinear control techniques, e.g. passivity-based control, showing its effectiveness.

Keywords

DC-DC power convertors; controllability; feedback; linearisation techniques; nonlinear systems; numerical analysis; DC-DC converter; buck-boost converter; control theory; controllability; feedback coefficient; linearization approach; linearization control; nonlinear affine model; nonlinear control method; nonlinear control techniques; nonlinear output function; nonlinear system; numerical simulation; passivity-based control; state feedback; state feedback law; Geometry; Inductors; Nonlinear systems; State feedback; Switches; Voltage control; Buck-Boost; State feedback; exact linearization;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Application Conference and Exposition (PEAC), 2014 International

Conference_Location

Shanghai

Type

conf

DOI

10.1109/PEAC.2014.7038085

Filename

7038085