Title :
Quasi-periodicity of a buck-boost converter with the nonlinearity of the diode and the MOSFET
Author :
Chun-Hsien Wu ; Ming-Yang Cheng
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
This paper explores the bifurcation behavior of a buck-boost converter. Unlike the previous research, the nonlinearity of the MOSFET and the diode are taken into account when modeling the dynamic equations of the converter. In the simulation, bifurcation points are computed and compared with the ones calculated with the piecewise-linear model and the software SIMPLIS. The simulation results reveal that our model best represents the true behavior of the converter. Moreover, engineers can predict more precisely the occurrence of instability with this model.
Keywords :
DC-DC power convertors; MOSFET; bifurcation; piecewise linear techniques; power engineering computing; MOSFET nonlinearity; SIMPLIS software; bifurcation behavior; bifurcation point computation; buck-boost converter quasi-periodicity; converter dynamic equations; diode nonlinearity; piecewise-linear model; Bifurcation; Jacobian matrices; Pulse width modulation;
Conference_Titel :
Future Energy Electronics Conference (IFEEC), 2013 1st International
Conference_Location :
Tainan
Print_ISBN :
978-1-4799-0071-8
DOI :
10.1109/IFEEC.2013.6687594
