This study presents a set of four cascaded step-up DC–DC converter with the quasi-Z source (qZS). By associating the voltage step-up cells at the input that qZS converter, depending on the configuration, their gain can multiply different factors that each cell with the qZS converter voltage gain. In addition, voltage and current stresses on components change. To evaluate the proposed converters the following characteristics are observed: the principle of operation, the voltage gain of the converters, low voltage and comparative evaluation. In order to demonstrate the simplicity of operation of the proposed converters to higher-order topology, qZS with boost factor and super-lift cells is modelled and controlled. Finally, to validate the theoretical analyses, two prototypes of 200 W were implemented experimentally.

中文翻译：

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应用于准Z源DC-DC转换器的级联升压单元的评估

这项研究提出了一组具有准Z源（qZS）的四个级联升压DC-DC转换器。通过将qZS转换器输入端的升压单元相关联，根据配置，它们的增益可以将每个单元的不同因数与qZS转换器电压增益相乘。此外，组件上的电压和电流应力也会改变。为了评估所提出的转换器，应观察到以下特征：工作原理，转换器的电压增益，低压和比较评估。为了证明所提出的转换器操作于高阶拓扑的简单性，对具有升压因子和超提升单元的qZS进行了建模和控制。最后，为了验证理论分析，通过实验实现了两个200 W的原型。