A single phase T-type inverter operating in boundary conduction mode
A single phase T-type inverter operating in boundary conduction mode
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DOI：
10.1109/ecce.2016.7854781
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发表时间：
2016-09
期刊：
影响因子：
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通讯作者：
Zhen Zhang;Junming Zhang;Xinke Wu
中科院分区：
文献类型：
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作者：
Zhen Zhang;Junming Zhang;Xinke Wu
本文提出了一种工作在边界导通模式下的单相T型逆变器。在过去，边界导电模式已被广泛用于实现谷电压开关。本文将全桥逆变器的一个开关桥臂替换为T型开关桥臂，以进一步提高效率。由于T型开关桥臂产生三个电压电平，与传统的两电平全桥逆变器相比，开关管两端的电压应力减半，开关频率降低。结果，开关损耗和电感器磁芯损耗大大降低，效率提高。本文详细介绍了该逆变器的特点。实验结果验证了该逆变器相对于传统两电平全桥逆变器的优越性。
This paper proposes a single phase T-type inverter operating in boundary conduction mode (BCM). In the past, boundary conduction mode has been widely used to achieve valley voltage switching. In this paper, one switching leg of a full-bridge inverter is replaced by a T-type switching leg to further improve the efficiency. Because the T-type switching leg generates three voltage levels, the voltage stress across switches is halved and the switching frequency decreases compared with the conventional two-level full-bridge inverter operating in BCM. As a result, the switching losses and inductor core losses are largely reduced and the efficiency is improved. The characteristics of the proposed inverter are detailed in this paper. A prototype is built and experimental results validate the superiority of the proposed inverter over the conventional two-level full-bridge inverter.