中国电机工程学报2011，Vol.31Issue(30)：24-29,6.
一种新颖的抑制两级式直交逆变器输入电流低频脉动的方法
A Novel Technique for Low Frequency Input Current Ripple Reduction In Two-stage DC-AC Inverter
摘要
Abstract
The input current of the two-stage DC-AC inverter contains low frequency ripple which is twice the inverter＇s output frequency.The proportion of the low frequency current ripple＇s amplitude to the average current is very high and it could be achieved more than 30%.The stability of DC power system and the longevity of the input voltage source such as battery or fuel cell could be influenced seriously.The new control strategy for the previous stage DC/DC converter was proposed by analyzing the reason of the low frequency current ripple production in this paper.The resonant controller is introduced in the traditional control strategy.The proposed new control strategy will be very useful to reduce the current ripple of output filter inductor in the DC/DC converter,and the input current ripple of the two-stage DC-AC inverter will also be lower.The design of the resonant controller and the transfer function of the system were given in the paper,and the design principles of system stability were also analyzed.At last,the effectiveness of proposed new control strategy to reduce the input current ripple which exists in the two-stage DC-AC inverter was verified by simulation and experimental results.关键词
两级式直交逆变器/低频脉动/谐振控制器/控制策略Key words
two-stage DC-AC inverter/low frequency ripple/resonant controller/control strategy分类
信息技术与安全科学引用本文复制引用
邓翔,韦徵,龚春英,王建华,张方华..一种新颖的抑制两级式直交逆变器输入电流低频脉动的方法[J].中国电机工程学报,2011,31(30):24-29,6.基金项目
国家重点基础研究发展计划项目（973项目)（2007CB210303) （）
