Title :
A bidirectional AC-DC converter with high power efficiency and high power factor using fast FPGA digital control
Author :
Matsuo, Hirofumi ; Suetomi, Masayuki ; Fujino, Shuji ; Harada, Koosuke ; Lin, Wengzong ; Sui, Yue
Author_Institution :
Grad. Sch. of Sci. & Technol., Nagasaki Univ., Nagasaki, Japan
fDate :
Sept. 30 2012-Oct. 4 2012
Abstract :
This paper deals with bidirectional AC-DC converter with high power efficiency and high power factor, in which the novel FPGA control strategy is applied. The prototype bidirectional AC-DC converter of the rated power of 2kW is made and tested. As a result, in both forward operation mode and regenerative one, the power efficiency is at 97.0% at the rated output power of 2kW, is over 98.0% at 25% output power of the rated one and maximum one is 98.4% at 0.7kW. The power factor is over 0.99 under the output power condition from 20% to the rated one and over 0.96 under 10% output power condition of the rated one. The transient response time is under half period, when the converter operation is changed from the forward mode to regenerative one.
Keywords :
AC-DC power convertors; digital control; field programmable gate arrays; microcontrollers; bidirectional AC-DC converter; efficiency 97.0 percent; fast FPGA digital control; forward operation mode; power 0.7 kW; power 2 kW; power efficiency; power factor; transient response time; AC-DC power converters; Field programmable gate arrays; Inverters; Magnetic circuits; Power generation; Reactive power; Transient response;
Conference_Titel :
Telecommunications Energy Conference (INTELEC), 2012 IEEE 34th International
Conference_Location :
Scottsdale, AZ
Print_ISBN :
978-1-4673-0999-8
Electronic_ISBN :
2158-5210
DOI :
10.1109/INTLEC.2012.6374485
