Lyapunov-based Large Signal Stable Control for Coupled-inductor Sepic Converter

Author

Zhang, Yongping ; Zhang, Bo ; Qiu, Dongyuan

Author_Institution

South China Univ. of Technol., Guangzhou

fYear

2007

fDate

23-25 May 2007

Firstpage

1250

Lastpage

1255

Abstract

In order to obtain the large signal stable control strategy of high-order system, Lyapunov direct method is applied to coupled-inductor Sepic converter for the first time. Extended system of differential equation of Sepic converter is proposed in this paper. Based on Lyapunov stability theory, Lyapunov function is constructed successfully and a globally asymptotic stable control law is obtained. The proposed controller is robustness around the operating point, and good performance of transient responses can be achieved at load changes and input voltage variations. Simulation results confirm the effectiveness of the proposed control law.

Keywords

Lyapunov methods; asymptotic stability; differential equations; power convertors; transient response; Lyapunov direct method; Lyapunov function; Lyapunov stability theory; coupled-inductor Sepic converter; differential equation; globally asymptotic stable control; high-order system; large signal stable control; transient responses; Industrial electronics;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2007. ICIEA 2007. 2nd IEEE Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4244-0737-8

Electronic_ISBN

978-1-4244-0737-8

Type

conf

DOI

10.1109/ICIEA.2007.4318606

Filename

4318606