Dynamics and Stability Issues of a Single-Inductor Dual-Switching DC–DC Converter
- 2 June 2009
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Circuits and Systems I: Regular Papers
- Vol. 57 (2), 415-426
- https://doi.org/10.1109/tcsi.2009.2023769
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.Keywords
This publication has 30 references indexed in Scilit:
- Two-parameter discontinuity-induced bifurcation curves in a ZAD-strategy-controlled dc-dc buck converterIEEE Transactions on Circuits and Systems I: Regular Papers, 2008
- Bifurcation Analysis of PWM-1 Voltage-Mode-Controlled Buck Converter Using the Exact Discrete ModelIEEE Transactions on Circuits and Systems I: Regular Papers, 2007
- Stability analysis of nonlinear power electronic systems utilizing periodicity and introducing auxiliary state vectorIEEE Transactions on Circuits and Systems I: Regular Papers, 2005
- FPGA control of SIMO DC-DC converters using load current estimationPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A pseudo-CCM/DCM SIMO switching converter with freewheel switchingIEEE Journal of Solid-State Circuits, 2003
- Bifurcations and Chaos in Piecewise-Smooth Dynamical SystemsWorld Scientific Series on Nonlinear Science Series A, 2003
- Stability analysis of a feedback-controlled resonant DC-DC converterIEEE Transactions on Industrial Electronics, 2003
- Single-inductor multiple-output switching converters with time-multiplexing control in discontinuous conduction modeIEEE Journal of Solid-State Circuits, 2003
- Quasi-periodic route to chaos in a PWM voltage-controlled DC-DC boost converterIEEE Transactions on Circuits and Systems I: Regular Papers, 2001
- Bifurcation behavior in parallel-connected buck convertersIEEE Transactions on Circuits and Systems I: Regular Papers, 2001