%0 Journal Article
%T Improved discrete-time model for a digital controlled single-phase full-bridge voltage inverter<br>数字控制单相全桥电压型逆变电路的改进离散迭代模型
%A Wu Xuan-Lü
%A Xiao Guo-Chun
%A Lei Bo
%A <br>吴旋律
%A 肖国春
%A 雷博
%J 物理学报
%D 2013
%I 
%X An improved discrete-time model for a digital controlled single-phase full-bridge voltage inverter is proposed in this paper. Based on state-space averaging in every switching cycle, the improved discrete-time model combines the advantages of the average model and the traditional discrete-time model, which can accurately analyze the digital control delay and sample-and-hold process inherently in digital controlled system. Consequently, under the accuracy premise, the improved discrete-time model can effectively simplify the traditional discrete-time modeling. As an example, an LC filter capacitor-voltage and inductor-current feed-back plus voltage-reference feed-forward control algorithm is analyzed based on the improved discrete-time model. The stability boundary and oscillation frequency are accurately predicted. Finally, theoretical results are verified by simulations and experiments.
%K H-bridge inverter
%K discrete-time iterative map
%K digital control
%K bifurcation<br>单相全桥逆变电路
%K 离散迭代模型
%K 数字控制
%K 分岔
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=164B941495554643CABB9CA9070BD418&yid=FF7AA908D58E97FA&iid=94C357A881DFC066&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0