Title
Dynamics and stability issues of a single-inductor dual-switching DC-DC converter
Abstract
A single-inductor two-input two-output power electronic dc-dc converter can be used to regulate two generally nonsymmetric positive and negative outputs by means of a pulsewidth modulation with a double voltage feedback. This paper studies the dynamic behavior of this system. First, the operation modes and the steady-state properties of the converter are addressed, and, then, a stability analysis that includes both the power stage and control parameters is carried out. Different bifurcations are determined from the averaged model and from the discrete-time model. The Routh-Hurwitz criterion is used to obtain the stability regions of the averaged (slow-scale) dynamics in the design parameter space, and a discrete-time approach is used to obtain more accurate results and to detect possible (fast-scale) subharmonic oscillations. Experimental measurements were taken from a system prototype to confirm the analytical results and numerical simulations. Some possible nonsmooth bifurcations due to the change in the switching patterns are also illustrated.
Year
DOI
Venue
2010
10.1109/TCSI.2009.2023769
IEEE Trans. on Circuits and Systems
Keywords
Field
DocType
possible nonsmooth,stability analysis,system prototype,discrete-time model,stability issue,dc-dc converter,stability region,power stage,routh-hurwitz criterion,electronic dc-dc converter,discrete-time approach,single-inductor two-input two-output power,oscillations,pulse modulation,bifurcation,routh hurwitz,steady state,power electronics,numerical simulation,feedback,negative feedback,discrete time,parameter space,nonlinear dynamics,voltage
Nonlinear system,Control theory,Routh–Hurwitz stability criterion,Voltage,Negative feedback,Pulse-width modulation,Inductor,Electronic engineering,Parameter space,Power electronics,Mathematics
Journal
Volume
Issue
ISSN
57
2
1549-8328
Citations 
PageRank 
References 
17
1.34
13
Authors
5
Name
Order
Citations
PageRank
Vanessa Moreno-Font1192.39
Abdelali El Aroudi217735.04
Javier Calvente39013.88
Roberto Giral49414.17
Luis Benadero55611.91