TY - GEN
T1 - Narrow pulsed voltage generator for liquid food sterilization
AU - Wu, T. F.
AU - Tseng, S. Y.
AU - Wu, M. W.
AU - Chen, Y. M.
PY - 2006
Y1 - 2006
N2 - This paper first reviews mechanism and waveform consideration for liquid food sterilization, and then presents how to generate bipolar narrow pulses, hi this research, a bidirectional flyback converter with energy recovery circuits is proposed to generate bipolar narrow pulsed electric fields for liquid food sterilization, which includes sterilization of drinking water, alcoholic beverages, fruit juice, etc. Since in the converter, leakage inductance is around 1 % of the magnetizing inductance, capacitors are used to resonate with the leakage inductor to recover the trapped energy and to reduce switching loss, improving efficiency about 13%. In addition, the energy recovery capacitor can reduce voltage stress significantly. Experimental results obtained from a prototype with the output of ±6 kV ∼ ±20 kV, depending on loads, and peak power of 250 kW have confirmed these discussions.
AB - This paper first reviews mechanism and waveform consideration for liquid food sterilization, and then presents how to generate bipolar narrow pulses, hi this research, a bidirectional flyback converter with energy recovery circuits is proposed to generate bipolar narrow pulsed electric fields for liquid food sterilization, which includes sterilization of drinking water, alcoholic beverages, fruit juice, etc. Since in the converter, leakage inductance is around 1 % of the magnetizing inductance, capacitors are used to resonate with the leakage inductor to recover the trapped energy and to reduce switching loss, improving efficiency about 13%. In addition, the energy recovery capacitor can reduce voltage stress significantly. Experimental results obtained from a prototype with the output of ±6 kV ∼ ±20 kV, depending on loads, and peak power of 250 kW have confirmed these discussions.
KW - Bipolar narrow pulse generator
KW - Energy recovery feature
KW - Flyback converter
UR - http://www.scopus.com/inward/record.url?scp=33749509944&partnerID=8YFLogxK
M3 - 会议稿件
AN - SCOPUS:33749509944
SN - 0780395476
SN - 9780780395473
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1354
EP - 1360
BT - Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, APEC '06
T2 - 21st Annual IEEE Applied Power Electronics Conference and Exposition, APEC '06
Y2 - 19 March 2006 through 23 March 2006
ER -