临界模式APFC主电路参数设计与仿真

摘要

Active Power Factor Correction (APFC) technology is an effective method to restrain harmonic current and to increase power factor for AC/DC converters. The operational performance of APFC circuit is decided by its main circuit component parameter and control system. The main circuit component parameter of APFC circuit operating in critical conduction mode (CRM) was designed with the steady state analyzing method based on its strueture and principle. It was simulated by the SABER software. The result of simulation shows the method is feasible, which cuts down effectively the expenses for circuit development.%研究电源稳定性能优化问题,有源功率因数校正技术是AC/DC电源变换电路中抑制谐波电流和提高功率的有效途径.因主电路的元件参数及控制系统决定工作性能,根据临界导电模式有源功率因数校正电路的结构与工作原理,进行稳态分析.为提高电路稳定性,提出进行了主电路参数的设计,并在SABER软件建立模型,进行了仿真校验.仿真表明方法是可行的,能抑制电流谐波,提高了功率,为设计提供了有效依据.