A three-phase reduced switch high power factor buck-type converter
A three-phase reduced switch high power factor buck-type converter
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DOI：
10.1109/tpel.2010.2051236
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发表时间：
2010-06
期刊：
影响因子：
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通讯作者：
S. Bassan;G. Moschopoulos
中科院分区：
文献类型：
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作者：
S. Bassan;G. Moschopoulos
本文提出了一种三相，减少开关，降压型转换器，可以与输入功率因数校正。所提出的转换器的关键特征是转换器中的开关具有比传统三相单开关降压转换器中的开关更低的峰值电压应力。所提出的转换器中的电压应力被限制到输入电容器的相电压的峰值，而不是线间电压的峰值，如在传统的转换器的情况下。因此，与传统转换器相比，电压应力几乎减少一半。这允许在转换器中使用额定值较低的标准器件，并降低开关损耗。在本文中，稳态操作的转换器和一般属性和设计考虑进行了讨论。所提出的转换器的可行性证实了从实验样机获得的结果。
The paper proposes a three-phase, reduced switch, buck-type converter that can operate with input power factor correction. The key feature of the proposed converter is that a switch in the converter has a lower peak voltage stress than a switch in a conventional three-phase, single-switch buck converter. The voltage stress in the proposed converter is limited to the peak value of the phase voltage of the input capacitors rather than the peak value of the line-to-line voltage, as is the case in the conventional converter. The reduction in the voltage stresses is therefore almost half as compared to that of conventional converter. This allows lower rated, standard devices to be used in the converters and reduces switching losses. In the paper, the steady state operation of the converter is presented and general properties and design considerations are discussed. The feasibility of the proposed converter is confirmed with results obtained from an experimental prototype.