In this article, a novel high-reliability single-phase dual-output current source inverter is presented. By using the switching-cell (SC) structure in the proposed topology, the overlap-time between switching transition can be minimized or eliminated. This improves the quality of ac output currents, efficiency, and dc-source utilization. Additionally, the capacitors in SC structure can help to reduce dv / dt of power switches and clamp the overshoot voltage under open-circuit problems, thus improving reliability. Two modes of common and different frequency operations are considered and detailed pulsewidth modulation schemes are presented. A 650-W hardware prototype was built and tested to verify the performance of the proposed inverter, and the results are compared with conventional single-phase dual-output current source inverters.

中文翻译：

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采用开关单元结构的高可靠性，减少开关数量的单相双输出电流源逆变器

在本文中，提出了一种新颖的高可靠性单相双输出电流源逆变器。通过在提出的拓扑中使用开关单元（SC）结构，可以最大程度地减少或消除开关转换之间的重叠时间。这样可以提高交流输出电流的质量，效率和直流电源利用率。此外，SC结构中的电容器可以帮助减少dv / dt在断路情况下，可对电源开关进行钳位并钳位过冲电压，从而提高了可靠性。考虑了常见和不同频率操作的两种模式，并给出了详细的脉宽调制方案。构建并测试了650W硬件原型，以验证所提出的逆变器的性能，并将结果与​​传统的单相双输出电流源逆变器进行比较。