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首页> 外文会议>Power Electronics Conference, 2009. COBEP '09 >Study of a single stage buck-boost three-phase rectifier with high power factor operating in discontinuous conduction mode (DCM)
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Study of a single stage buck-boost three-phase rectifier with high power factor operating in discontinuous conduction mode (DCM)

机译：高功率因数单级降压-升压型三相整流器以不连续导通模式（DCM）工作的研究

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This paper presents a three-phase Buck-Boost rectifier operating in discontinuous current mode (DCM). The main advantage of the proposed circuit is to provide, with a single stage, output voltages lower or higher than input voltage peaks. The command is very simple, with all switches simultaneously powered by the same pulse. The control of the structure is achieved by a voltage loop only. This can be accomplished because in DCM operation the input current shape is determined by the input voltage. Practical results of a 90 V input voltage project are presented. Sinusoidal currents with lower distortion and high power factor on Buck and Boost modes were obtained. Principle of operation, theoretical analysis and practical result are presented.
机译：本文介绍了一种在不连续电流模式（DCM）下工作的三相Buck-Boost整流器。所提出的电路的主要优点是提供了单级输出低于或高于输入电压峰值的输出电压。该命令非常简单，所有开关同时由同一脉冲供电。该结构的控制仅通过电压环路来实现。之所以可以实现这一点，是因为在DCM操作中，输入电流形状由输入电压决定。给出了90 V输入电压项目的实际结果。获得了在Buck和Boost模式下具有较低失真和较高功率因数的正弦电流。介绍了工作原理，理论分析和实际结果。

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