应用于x射线发生器的PDM控制串联谐振多电平变换器

30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321) Pub Date : 1999-06-27 DOI:10.1109/PESC.1999.785661

T. Wu, J. Hung

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引用次数: 38

摘要

本文介绍了一种应用于x射线发生器的脉冲密度调制(PDM)控制串联谐振多电平变换器的分析、设计和实际考虑。所提出的变换器工作频率为100khz，最大输出功率为30kw。变换器的谐振槽工作在略高于其谐振的位置，实现零电压开关和开关转换时的低关断损耗，从而实现低损耗。采用多级配置时，施加在交换机上的电压仅为输入电压的一半。样机已经实现，实验结果证明了该系统的可行性。

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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A PDM controlled series resonant multi-level converter applied for X-ray generators

This paper presents analysis, design and practical consideration of a pulse-density modulation (PDM) controlled series resonant multi-level converter applied for X-ray generators. The proposed converter is operated at 100 kHz and with a maximum output power of 30 kW. The resonant tank of the converter is operated slightly above its resonance to achieve zero voltage switching and low turn-off loss at switching transition resulting in low loss. With the multi-level configuration, the voltage imposed on the switches is only half of the input voltage. A prototype has been implemented and the experimental results have demonstrated the feasibility of the proposed system.

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30th Annual IEEE Power Electronics Specialists Conference. Record. (Cat. No.99CH36321)

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