【摘要】 提出了一种新型的高功率因数的三相大功率变换器主电路拓扑方案 ,该电路利用单级PS -ZVZCS -PWM逆变桥完成功率因数校正 (PFC)和输出电压调节双重功能 ;分析了该电路的基本工作原理、关键参数的设计计算 ,仿真结果表明这种新型的单级大功率开关电源功率因数可达到 0 .995。更多还原

【Abstract】 A novel high power factor three phase high power switch source topology is presented, which composes PFC with PS-ZVZCS-PWM inverter bridge in a single stage. Moreover, its operation process principles and critical parameters are analyzed, its simulation results proved that the novel single stage high power switch source’s power factor can achieve 0.995.更多还原