零电压过渡过程对PWM逆变器输出性能的影响及校正方法  

Process of dc-rail zero-voltage-transition and its influence on output of PWM inverter and correction strategies

作　　者：明正峰[1] 段龙[1] 钟彦儒[1] 

机构地区：[1]西安理工大学110信箱,陕西西安710048

出　　处：《电工电能新技术》2002年第1期65-68,共4页Advanced Technology of Electrical Engineering and Energy

基　　金：陕西省自然科学基金资助项目 (2 0 0 1X19)

摘　　要：本文重点讨论了直流母线零电压过渡 (DC RailZVT)PWM逆变单元中一些非线性因素 (诸如母线电压零凹槽等 )对系统输出性能的影响。通过图示说明和理论分析的方法对这种影响进行了详细的比较和描述 ,得出了相关的结论并给出了相关的校正方法。最后 ,在系统条件完全相同的两种三相逆变器 (硬开关条件和软开关条件 )中 。This paper discusses mainly the influence of some nonlinear factors, such as the time of Zero Voltage Transition on system output performance in DC Rail ZVT soft switching three phase PWM inverter. Detail comparison and description of the influence are obtained through figure explanation and theoretical analyses, and conclusions are achieved. Finally, the conclusions are verified by some experiments with two kinds of three phase inverters (hard switching and soft switching condition) having the same system conditions.

关 键 词：零电压过渡 逆变单元 输出性能 PWM 逆变器 校正方法 

分 类 号：TM464[电气工程—电器]