This article presents a new circuit topology for high voltage gain active switched boost quasi Z-source inverter (qZSI) and a pulsewidth modulation (PWM) technique. The higher boosting capability with a lower number of elements, the continuous source current, the less voltage stress across the devices, and having the common ground are the main advantages of the proposed structure. The voltage gain of the proposed inverter is twice that of the conventional capacitor-assisted qZSI (sCA-qZSI). Other benefits of the proposed inverter over the sCA-qZSI are the reduction of Z-source passive components and shoot-through current. Compared to the conventional active switched inductor boost qZSI, the proposed inverter has higher output voltage and also lower shoot-through current, while it has fewer components (one fewer inductor, two fewer diodes, but one more capacitor). The boost factor of the proposed inverter is more than twice that of the classic ones. Besides, a high gain PWM technique is proposed, which can be applied to any types of Z-source inverters. Both the simulation and experimental results of the proposed inverter under the proposed PWM technique are examined to validate their operation.

中文翻译：

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高增益 PWM 方法和有源开关升压 Z 源逆变器对器件的电压应力较小

本文介绍了一种用于高压增益有源开关升压准 Z 源逆变器 (qZSI) 和脉宽调制 (PWM) 技术的新电路拓扑。具有较少元件数量的更高升压能力、连续源电流、跨器件的电压应力更小以及具有公共接地是所提出结构的主要优点。所提出的逆变器的电压增益是传统电容器辅助 qZSI (sCA-qZSI) 的两倍。与 sCA-qZSI 相比，所提议的逆变器的其他好处是减少了 Z 源无源元件和直通电流。与传统的有源开关电感升压 qZSI 相比，所提出的逆变器具有更高的输出电压和更低的直通电流，同时它的组件更少（一个电感器，两个二极管，但多一个电容器）。所提出的逆变器的升压因子是经典逆变器的两倍多。此外，还提出了一种高增益 PWM 技术，可应用于任何类型的 Z 源逆变器。在所提出的 PWM 技术下，所提出的逆变器的仿真和实验结果都经过检查以验证其操作。