Title :
A Novel Current Control Method for Three-Phase APF Based on Switched Affine System Model and Quadratic Stability
Author :
Guo Xiao-yun ; Liu Hui-jin ; Cao Yu-sheng
Author_Institution :
Sch. of Electr. Eng., Wuhan Univ., Wuhan, China
Abstract :
This paper presents a novel current control method for three-phase APF based on switched affine system quadratic stability. In this paper, three-phase APF is modeled as switched affine system. The three-phase grid voltages are divided into 12 regions, each region has chosen a combination of switching subsystems according to the condition for quadratic stability. By selecting the common Lyapunov function and designing the switching rules, the quadratic stability of a given switched equilibrium is ensured with switching. The proposed approach can improve dynamic response of the control system and reduce the operation switching frequency.
Keywords :
Lyapunov methods; active filters; dynamic response; electric current control; power filters; power grids; stability; Lyapunov function; active power filter; current control method; dynamic response; quadratic stability; switched affine system model; switching frequency; three-phase APF; three-phase grid voltages; Active filters; Circuit stability; Current control; Electric current control; Energy efficiency; Linear circuits; Lyapunov method; Switched systems; Switches; Switching converters;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5448521
