A novel converter with a three-winding coupled inductor, called switched-coupled-inductor Z-source inverter (SCI-ZSI), is developed based on the switched-and-coupled inductor technology in this study. Compared with the conventional switched-inductor Z-source inverter and trans-Z-source inverter, the novel inverter had a higher voltage-boosting capability. In addition, the improved topology shared a common ground point between the DC source and the inverter bridge. Under the same modulation index and load conditions, the input diode and capacitor voltage stress of the proposed inverter were lower than those of the other topologies. The operating principles, impedance-network design, voltage and current stress are presented. The theoretical findings were verified by simulation and experimental results.

中文翻译：

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具有高升压反转能力的开关耦合电感Z源逆变器

基于开关耦合电感器技术，本研究开发了一种新型的具有三绕组耦合电感器的转换器，称为开关耦合电感器Z源逆变器（SCI-ZSI）。与常规的开关电感Z源逆变器和跨Z源逆变器相比，新型逆变器具有更高的升压能力。此外，改进的拓扑结构在直流电源和逆变器桥之间共享一个公共接地点。在相同的调制指数和负载条件下，拟议的逆变器的输入二极管和电容器电压应力低于其他拓扑。介绍了工作原理，阻抗网络设计，电压和电流应力。通过仿真和实验结果验证了理论结论。