Title :
Variable-Structure Control Design of Switched Systems With an Application to a DC–DC Power Converter
Author :
Cardim, Rodrigo ; Teixeira, Marcelo C M ; Assuncao, Edvaldo ; Covacic, Márcio Roberto
Author_Institution :
Dept. of Electr. Eng., UNESP-Sao Paulo State Univ., Ilha Solteira, Brazil
Abstract :
This paper is concerned with the design of state-feedback variable-structure controllers (VSCs) for a class of continuous-time switched plants. In particular, a new VSC design method based on Lyapunov-Metzler (LM) inequalities and the properties of strictly positive real (SPR) systems is suggested. The method is applied to the control of a DC-DC power converter. The performance of the resulting control system is superior to that afforded by a recently proposed alternative sliding-mode control technique. The definition of LM-SPR systems and its direct application to establish a procedure for designing the switching rule and VSC input are presented.
Keywords :
DC-DC power convertors; control system synthesis; switching convertors; variable structure systems; DC-DC power converter; Lyapunov-Metzler inequalities; sliding-mode control technique; strictly positive real systems; switched systems; variable-structure control design; DC–DC converters; Lyapunov–Metzler (LM) inequalities; linear matrix inequalities (LMIs); strictly positive real (SPR) systems; switched systems; variable-structure control;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2009.2026381