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    A single phase buck-boost AC-AC converter with low input current THD and high input power factor

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    Date
    2011
    Publisher
    © 2011 Institute of Electrical and Electronics Engineers Inc.
    Author
    Abedin, Amina Hasan
    Kabir, Ashfanoor N M Enamul
    Ahmad, Estiak
    Rahman, Dhrubo
    Choudhury, Mohammad Ali A Shoukat
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/10361/7042
    Citation
    Abedin, A. H., Kabir, A., Ahmad, E., Rahman, D., & Choudhury, M. A. (2013). A single phase buck-boost AC-AC converter with low input current THD and high input power factor. Paper presented at the International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2011 and Electromotion 2011 Joint Conference, 175-179. doi:10.1109/ACEMP.2011.6490590
    Abstract
    Two new topologies of Buck-Boost single-phase ac-ac conversion are proposed. In one of the circuits a bi-directional switch with a single buck-boost inductor is used, whereas, in the other circuit a bi-directional switch with two separate buck-boost inductors are used. Both the circuits operate in buck-boost mode separately for positive and negative cycle of the supply. As a result the input current remains almost in phase with the supply voltage without any additional sensors and control circuit. It runs in free running mode. The input current becomes almost sinusoidal by the use of small input filter. Input current THD is very low and the input power factor is very high. The converters like other switch mode converters have variable efficiency with change in duty cycle. High efficiency is possible within a range of duty cycle.
    Keywords
    AC-AC converter; Buck-Boost converter; Low THD AC-AC conversion; Power factor improvement; Power quality
     
    Description
    This conference paper was presented in the 2011 International Aegean Conference on Electrical Machines and Power Electronics, ACEMP 2011 and Electromotion 2011 Joint Conference; Istanbul; Turkey; 8 September 2011 through 10 September 2011 [© 2011 Institute of Electrical and Electronics Engineers Inc.] The conference paper's definite version is available at: http://10.1109/ACEMP.2011.6490590
    Publisher Link
    http://ieeexplore.ieee.org/document/6490590/
    DOI
    10.1109/ACEMP.2011.6490590
    Department
    Department of Electrical and Electronic Engineering
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    • Conference Paper

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