In this paper, a unidirectional single-phase five-level PWM rectifier based on flying-capacitor topology operating as PFC is proposed. The main feature is the fact that the proposed converter has three active switches, therefore offering a cost reduction compared to traditional five-level topologies. The multilevel voltage operation reduces the weight and bulk of the magnetic devices. Moreover, 82% of the semiconductors are subject to one fourth to DC output voltage which allows the use of low voltage semiconductor devices. An extensive mathematical analysis, control-oriented modeling in addition to experimental results are presented in order to demonstrate the feasibility of the structure.

中文翻译：

---

使用三个开关的单相五电平飞电容整流器

提出了一种基于飞电容拓扑结构的单向单相五电平PWM整流器。主要特征在于，所提出的转换器具有三个有源开关，因此与传统的五级拓扑相比，可降低成本。多级电压操作减少了磁性设备的重量和体积。而且，82％的半导体要承受直流输出电压的四分之一，这允许使用低压半导体器件。除了实验结果外，还进行了广泛的数学分析，面向控制的建模，以证明该结构的可行性。