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Utilizing robustness of positive buck-boost converter against input voltage and load current disturbances

A. Boora, Arash, Zare, Firuz, & Ghosh, Arindam (2009) Utilizing robustness of positive buck-boost converter against input voltage and load current disturbances. Australian Journal of Electrical & Electronics Engineering, 6(2).

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Abstract

A Positive Buck- Boost (PBB) converter is a known DC-DC converter that can operate in step up and step down modes. Unlike Buck, Boost, and Inverting Buck Boost converters, the inductor current of a PBB can be controlled independently of its voltage conversion ratio. In other words, the inductor of PBB can be utilised as an energy storage unit in addition to its main function of energy transfer. In this paper, the capability of PBB to store energy has been utilised to achieve robustness against input voltage fluctuations and output current changes. The control strategy has been developed to keep accuracy, affordability, and simplicity acceptable. To improve the efficiency of the system a Smart Load Controller (SLC) has been suggested. Applying SLC extra current storage occurs when there is sudden loads change otherwise little extra current is stored.

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ID Code: 28695
Item Type: Journal Article
ISSN: 1448-837X
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Control Systems Robotics and Automation (090602)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Circuits and Systems (090601)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: © 2009 Copyright Engineers Australia.
Deposited On: 19 Nov 2009 14:09
Last Modified: 19 Jul 2013 14:33

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