Boost型高频环节AC-AC变换器研究  

Research on Boost Mode AC-AC Converters with High Frequency Link

作　　者：陈道炼[1] 陈艳慧[1] 

机构地区：[1]福州大学电力电子与电力传动研究所,福州350108

出　　处：《电源世界》2010年第5期21-25,共5页The World of Power Supply

基　　金：国家自然科学基金项目(资助号:50577031)

摘　　要：首次提出了Boost型高频链AC-AC变换器电路结构与拓扑族,它是由输入滤波器、储能电感、输入周波变换器、高频变压器、输出周波变换器和输出滤波器依序级联构成。深入分析研究了这类变换器的原理特性与控制策略,提出并有效地解决了变换器启动时储能电感的磁饱和问题以及高频变压器漏感引起的电压尖锋现象,给出了这类变换器的原理试验。研究结果表明,这类变换器具有电路拓扑简洁、高频电气隔离、双向功率流、变换效率高、网侧功率因数高、负载适应能力强、负载短路时可靠性高等优点。A circuit configuration and circuit topological family of the Boost mode AC-AC converter with high frequency link are proposed for the first time. This kind of circuit topology is made up of storage inductor, input cycoloconverter, high frequency transformer, output cycloconverter, as well as input and output filter. The principles and control strategy are deeply investigated and in the meantime, the author proposes and try to solve the problem of magnetic saturation caused by power inductor when the converter is started and the problem of voltage spike caused by the leakage inductance of high-frequency transformer. The author provides experiments for the principles of this kind of converters. The research indicates that this kind of converters have the advantages such as high-frequency electrical isolation, simple topology, two-stage power conversions, bi-directional power flow, high conversion efficiency, high line power factors, strong load adapting ability and high reliability during short load.

关 键 词：AC—AC变换器 高频链 BOOST型 周波变换器 移相控制策略 

分 类 号：TN86[电子电信—信息与通信工程]