Digital Plug-In Repetitive Controller for Single-Phase Bridgeless PFC Converters
Digital Plug-In Repetitive Controller for Single-Phase Bridgeless PFC Converters
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DOI：
10.1109/tpel.2012.2196288
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发表时间：
2013
影响因子：
6.7
通讯作者：
Younghoon Cho;J. Lai
中科院分区：
文献类型：
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作者：
Younghoon Cho;J. Lai
本文研究了一种插入式重复控制方案，用于无桥功率因数校正（PFC）变换器，以减轻输入电流在连续导通模式和不连续导通模式下的工作条件下的失真。从PFC转换器模型和使用II型补偿器的事实，建议一种设计方法，以最大限度地提高反馈控制器的带宽。在此之后，包括反馈控制器的误差传递函数推导，并使用误差传递函数的重复控制方案的稳定性进行评估。文中还讨论了数字重复控制器的实现。仿真和实验结果表明，输入电流THD显着改善，通过使用所提出的控制方案为1千瓦单相无桥PFC变换器的原型。
This paper investigates a plug-in repetitive control scheme for bridgeless power factor correction (PFC) converters to mitigate input current distortions under continuous conduction mode and discontinuous conduction mode operating conditions. From the PFC converter model and the fact that a type-II compensator is used, a design methodology to maximize the bandwidth of the feedback controller is suggested. After that, the error transfer function including the feedback controller is derived, and the stability of the repetitive control scheme is evaluated using the error transfer function. The implementation of the digital repetitive controller is also discussed. The simulation and experimental results show that the input current THD is significantly improved by using the proposed control scheme for a 1-kW single-phase bridgeless PFC converter prototype.