Analysis and Design of Three-Phase Interleaved Buck-Boost Derived PFC Converter

2019 IEEE Industry Applications Society Annual Meeting Pub Date : 2019-09-01 DOI:10.1109/IAS.2019.8912447

S. Gangavarapu, A. Rathore

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引用次数: 2

Abstract

A three-phase interleaved two-channel buck-boost derived power factor correction (PFC) converter for more electric aircraft application (MEA) is presented in this paper. Typically, the converters operated in continuous conduction mode (CCM) require two control loops (inner current, outer voltage), and five sensors to implement PFC control algorithm. As the supply frequency in MEA is variable, the controller has to be designed for a wider bandwidth, which complicates the controller design, and also complicates the phase-locked-loop (PLL) design. On the other hand, the discontinuous conduction mode (DCM) operation realizes the natural power factor correction at mains supply without any current control loop. Further, the DCM operation eliminates four sensors, and makes the system more reliable and robust. Hence, the proposed converter is designed to operate in DCM. A simple voltage control is implemented for output voltage regulation. The converter steady state operation and its design are presented in detail. The converter analysis and design are validated with the simulation results from PSIM. Further, the advantages of the proposed converter are demonstrated by comparing the proposed interleaved two-channel converter with single-channel three-phase buck-boost derived PFC converter.

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三相交错Buck-Boost型PFC变换器的分析与设计

提出了一种适用于多电动飞机的三相交错双通道降压升压衍生功率因数校正(PFC)变换器。通常，在连续传导模式(CCM)下工作的变换器需要两个控制回路(内电流，外电压)和五个传感器来实现PFC控制算法。由于MEA中的电源频率是可变的，因此必须将控制器设计为更宽的带宽，这使得控制器设计变得复杂，同时也使锁相环(PLL)设计变得复杂。另一方面，断续导通模式(DCM)运行实现了在市电供电时的自然功率因数校正，而无需任何电流控制回路。此外，DCM操作消除了四个传感器，使系统更加可靠和健壮。因此，所提出的转换器被设计为在DCM中工作。一个简单的电压控制实现输出电压调节。详细介绍了变换器的稳态工作及其设计。用PSIM的仿真结果验证了转换器的分析和设计。此外，通过将所提出的交错双通道变换器与单通道三相降压型PFC变换器进行比较，证明了所提出变换器的优点。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2019 IEEE Industry Applications Society Annual Meeting

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