DocumentCode
482662
Title
A novel bipolar bi-directional buck-boost converter
Author
Zhang, Li ; Yang, Shuang-jing ; Xing, Yan
Author_Institution
Aero-Power Sic-tech Center, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing
fYear
2008
fDate
17-20 Oct. 2008
Firstpage
1980
Lastpage
1984
Abstract
A novel bi-directional buck-boost converter used for battery charging and discharging cooperated with a three-level half bridge inverter in a UPS is proposed. The operation of charging and discharging can be controlled respectively, and the capacitor voltage balance can be achieved based on the peak current control. The operating principle and parameter design of the converter are analyzed in detail. Capacitor voltage balance affected by inductors coupling coefficient is also researched. Experimental results are presented to verify the proposed analysis.
Keywords
invertors; power capacitors; power convertors; uninterruptible power supplies; UPS; battery charging; battery discharging; bipolar bidirectional buck-boost converter; capacitor voltage balance; peak current control; three-level half bridge inverter; Batteries; Bidirectional control; Bridge circuits; Capacitors; Equations; Inductors; Inverters; Magnetic flux; Uninterruptible power systems; Voltage control;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location
Wuhan
Print_ISBN
978-1-4244-3826-6
Electronic_ISBN
978-7-5062-9221-4
Type
conf
Filename
4771066
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