Title :
Delays in PWM control loops imply discontinuity in sampled data models of power electronic circuits
Author :
Banerjee, Soumitro ; Parui, Sukanya
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Kharagpur, India
Abstract :
Past investigation on nonlinear phenomena in DC-DC converters assume ideal and instantaneous action of switches, for which the sampled data models yield piecewise smooth but continuous maps. In this paper we show that the unavoidable delay in the switching logic results in discontinuity in the map, which drastically changes the bifurcation structures.
Keywords :
DC-DC power convertors; PWM power convertors; bifurcation; chaos; delays; nonlinear network analysis; power electronics; DC-DC converters; PWM control loop delays; bifurcation structures; map discontinuity; nonlinear phenomena; power electronic circuits; sampled data models; switching logic delay; Bifurcation; Circuits; DC-DC power converters; Data models; Delay; Logic; Power electronics; Pulse width modulation; Switches; Switching converters;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1204963
