VIENNA结构在阻焊逆变电源中的应用仿真

摘要

In this paper,we made a simulation study on the inverter resistance welding power supply with VIENNA power factor correction (PFC).Simulation results show that this circuit topology could improve the power factor. The harmonic content of resistance welding inverter power meets the standard IEC-62135-2.The power factor rise to 97.94%. The voltage loaded on the switch is only half of the output voltage. All this results show that VIENNA PFC circuit topology with lots of practicality and superiority in resistance welding inverter power supply.%针对大功率阻焊逆变电源网侧输入电流谐波含量高、功率因数低的缺点,应用PSPICE电路仿真软件仿真研究了其功率因数补偿电路.仿真结果表明,采用三相三开关三电平结构(VIENNA结构)功率因数校正电路能够有效降低阻焊逆变电源网侧输入电流的谐波含量,同时满足国际阻焊电源电磁兼容标准(IEC-62135-2标准),功率因数达97％以上,并且开关管关断时承受的反向电压仅为输出电压的一半,VIENNA结构功率因数校正电路应用于阻焊逆变电源具有很强的实用性与优越性.