Title :
Study on the use of discretized sliding-mode controller in DC-DC switching regulators
Author :
Maity, Somnath ; Roy, Debjyoti
Author_Institution :
Dept. of Electr. Eng., Nat. Inst. of Technol., Rourkela, India
Abstract :
In this paper, we study the application of discretization of equivalent SM controller in DC-DC buck converters. Based on this control logic, we derive the two-dimensional (2-D) piecewise smooth (PWS) discontinuous map of the converter system. Some inherent dynamical properties of system´s steady-state behaviors (i.e., the bifurcation behaviors) are also studied. The presented one- and two-parameter bifurcation digrams show the domains of existence of different oscillatory modes and their sequence of occurrence of the converter system, which are quite different from the bifurcation behaviors observed in 2-D PWS continuous maps [1].
Keywords :
DC-DC power convertors; bifurcation; discrete systems; switching convertors; variable structure systems; 2-D PWS continuous maps; DC-DC buck converter system; DC-DC switching regulators; control logic; discretized sliding mode controller; equivalent SM controller; inherent dynamical properties; one-parameter bifurcation diagrams; oscillatory modes; steady-state behaviors; two-dimensional piecewise smooth discontinuous map; two-parameter bifurcation diagrams; Bifurcation; Conferences; Orbits; Switches; Tin; Trajectory; 2-dimensional piecewise smooth (PWS) discontinuous map; DC-DC converter; Sliding mode (SM) control; complexity; digital sliding mode controller;
Conference_Titel :
Variable Structure Systems (VSS), 2012 12th International Workshop on
Conference_Location :
Mumbai, Maharashtra
Print_ISBN :
978-1-4577-2066-6
Electronic_ISBN :
2158-3978
DOI :
10.1109/VSS.2012.6163472
