Title :
A three-port DC-DC converter with low frequency current ripple reduction technique
Author :
Zhong Chen ; Qunfang Wu ; Mengnan Li ; Yaming Xu ; Qin Wang
Author_Institution :
Jiangsu Key Lab. of New Energy Generation & Power Conversion, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
A three-port DC-DC converter with low frequency current ripple reduction technique is proposed, which can be applied to two-stage systems as the first stage. This DC-DC converter is based on a traditional flyback converter, adding an auxiliary circuit as the third port to eliminate low frequency current ripple. Small capacitance is required. Open current-loop control and closed dual voltage-loop control are employed. The operation principle is discussed in details. The control strategy and key parameters design considerations are given in this paper. The proposed converter is verified with a 95W prototype.
Keywords :
DC-DC power convertors; closed loop systems; electric current control; frequency control; open loop systems; voltage control; auxiliary circuit; closed dual voltage loop control; low frequency current ripple reduction technique; open current loop control; power 95 W; three-port flyback DC-DC converter; Capacitance; Capacitors; DC-DC power converters; Inductance; Inverters; Switches; Voltage control; current ripple reduction; small capacitance; three-port converter;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2015 IEEE
Conference_Location :
Charlotte, NC
DOI :
10.1109/APEC.2015.7104634
