升压式有源功率因数校正装置设计.pdfVIP

PE 升压式有源功率因数校正装置设计 陈 哲 （永济新时速电机电器公司技术中心电子所，山西永济 044502 ） 摘要 目前，电能变换装置正在得到广泛应用，但各种电能变换装置又不可避免地存在着谐 波与无功的危害，因此为满足相关规范对谐波与无功的严格限制，设计一种装置来有效减小谐波 与无功就很有必要。文章论述了有源功率因数校正（APFC ）这一当前最好方法的工作原理，探讨 了一种较大功率的升压式有源功率因数校正装置设计方案，着重分析了校正电路参数设计选择。 实验证明采用 APFC 后，装置达到了功率因数接近 1 的优良效果，实现了减小谐波与无功的目标。 关键词：功率因数；有源功率因数校正；升压式 PFC ；谐波 A Design of Active Power Factor Correction in Boost Mode Chen Zhe (Yongji Xinshisu Electric Equipment Co., Ltd, Yongji, Shanxi 044502) Abstract Nowadays, the electric power converter device is widely applied, but it inevitably has the harm of harmonic and reactive power. In order to meet the strict limit of related specifications to harmonic and reactive power, it is necessary to design a device which can decrease harmonic and reactive power effectively. The principle of Active Power Factor Correction(APFC) is introduced, and one schematic diagram of APFC in Boost Mode is put forward as one of best methods for switching mode power device with big power, and the main parameters are calculated or selected. The results given by the experiments prove that the design can meet the goal of decreasing the harmonic and reactive power effectively, and the design exhibits a unit power factor approximately. Key words ：power factor ；active power factor correction ；PFC in boost mode ；harmonic 1 功率因数校正的必要性 耗，降低发电、输电、用电设备的效率，大量的三 次谐波电流流过中线会使线路过热甚至发生火灾。 20 世纪 80 年代以来，随着电力电子技术的飞 （2 ）谐波影响各种电气设备的正常工作，使电 速发展，电能利用正在从一次电能向二次电能快速