Title :
A switching control method for three-phase APF based on discrete switched affine model
Author :
Zaojun Chen ; Xingong Cheng ; Xiju Zong ; Qinghua Zhang ; Menghua Zhang
Author_Institution :
Sch. of Electr. Eng., Univ. of Jinan, Jinan, China
Abstract :
A control method based on quadratic stabilization of discrete switched affine system is proposed to control the current of three-phase APF(Active Power Filter) in this paper. Quadratic stability of switching equilibrium point where the state of the discrete switched affine system has to be driven to is assessed using a discrete Lyapunov function, and sufficient conditions are given. According to the dynamic characteristics of three-phase APF, a discrete switched affine system is established. And it is easy to prove that the discrete switched affine system of three-phase APF meet the conditions which make the system globally stable. The feasibility of the method has been verified by the results of Matlab simulation.
Keywords :
Lyapunov methods; active filters; electric current control; power filters; stability; time-varying systems; Matlab simulation; current control; discrete Lyapunov function; discrete switched affine model; quadratic stability; quadratic stabilization; sufficient conditions; switching control method; switching equilibrium point; three-phase APF; three-phase active power filter; Harmonic analysis; Integrated circuit modeling; Load modeling; Power harmonic filters; Switches; active power filter; affine system; discrete; switching control;
Conference_Titel :
Information and Automation (ICIA), 2013 IEEE International Conference on
Conference_Location :
Yinchuan
DOI :
10.1109/ICInfA.2013.6720497
