单极性移相控制高频脉冲交流环节逆变器研究  

Research on Uni-polarity Phase Shifting Controlled Inverters with High Frequency Pulse AC Link

作　　者：陈道炼[1] 张友军[1] 

机构地区：[1]南京航空航天大学自动化学院,南京210016

出　　处：《电源世界》2007年第2期32-36,共5页The World of Power Supply

基　　金：航空基础科学基金资助项目(99F52045)。

摘　　要：本文深入分析研究了高频脉冲交流环节逆变器稳态原理特性与单极性移相控制策略。采用状态空间平均法建立了逆变器平均模型,获得了输出电压、滤波电感电流、共同导通时间、单极性SPWM波占空比等关键电路参数的设计准则和逆变器的外特性曲线。原理试验结果证实了理论分析的正确性。这类逆变器具有电路拓扑简洁、两级功率变换(DC/HFAC/KFAC)、双向功率流、周波变换器实现了ZVS换流、单极性SPWM波等优点,包括全桥全波式、全桥桥式两种电路,前者适用于低压输出逆变场合,后者适用于高压输出逆变场合。The steady principle of inverter with high frequency pulse AC link and uni polarity phase shifting control strategy are deeply investigated. The inverter＇s average model by using the state-space averaging approach is presented, the design criterion of key circuit parameters such as output voltage, filtering inductance, common conduction time, uni-polarity SPWM waveform＇s duty cycle etc are given. The theoretical analysis is verified by the test results. This kind of inverter has the advantages such as simple topology, two-stage power conversion（DC/HFAC/LFAC）, bi-directional power flow, soft commutation of cycloconverter, uni-polarity SPWM waveform etc. It has a full bridge-full wave mode topology which is suit for low output voltage and a full bridge-full bridge mode topology which is suit for high output voltage.

关 键 词：单极性移相控制 高频脉冲交流环节 逆变器 周波变换器 软换流 

分 类 号：TM464[电气工程—电器]