Fast Transitions Between Current Control Loops of the Coupled-Inductor Buck-Boost DC-DC Switching Converter

An already published current control strategy for the coupled-inductor buck-boost converter is able to change its aim from controlling the input current to controlling the output current, and vice versa, depending on the instantaneous operation point and the applied current references. The main draw...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on power electronics 2013-08, Vol.28 (8), p.3648-3652
Main Authors: Restrepo, C., Konjedic, T., Calvente, J., Milanovic, M., Giral, R.
Format: Article
Language:English
Subjects:
Applied sciences
Average current-mode control
Circuit properties
Control systems
Converters
Current control
Electric currents
Electric, optical and optoelectronic circuits
Electrical engineering. Electrical power engineering
Electrical equipment
Electrical machines
Electronic circuits
Electronics
Exact sciences and technology
fast control response
Fuel cells
Inductors
input and output current control
Joining
Magnetic devices
noninverting buck-boost converter
Power supplies
Regulation and control
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Signal convertors
Signaling
Steady-state
Strategy
Switching
Transfer functions
Transformers and inductors
Transforms
Vices
Voltage control
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An already published current control strategy for the coupled-inductor buck-boost converter is able to change its aim from controlling the input current to controlling the output current, and vice versa, depending on the instantaneous operation point and the applied current references. The main drawback of the two PI-based control implementation is its slow response when the control aim is changed from one current to the other. Due to the magnetic coupling, the converter's control-to-input and control-to-output current small signal transfer functions exhibit similar first-order characteristics. Therefore, it is possible to transform the previous control scheme to a PI-based one that exhibits faster and, in certain cases, much faster transitions between input and output current control operation. The presented experiments also show that the steady-state behavior of the converter is unaffected by the new control implementation.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2012.2231882