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Family of two-port switching networks with ripple power decoupling and output voltage step-up functions

机译：具有纹波功率去耦和输出电压升压功能的两端口开关网络系列

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摘要

Active decoupling methods are developed for tackling the inherent second-order ripple power. However, in all the active decoupling methods developed for single-phase current source rectifier (SCSR), the dc output voltage is limited to half the peak amplitude of the ac source voltage. That limits SCSR's wide applications. Addressing that issue this study proposes a family of two-port switching networks (TSNs) to achieve ripple power decoupling and output voltage step-up at the same time. The main circuit is formed by inserting the TSN into the dc link of a conventional SCSR. Compared with the most existing SCSRs with decoupling capability, no extra semiconductor devices are added. Related operating principle and modulation scheme are described first. Then the selection of the decoupling capacitance is discussed. A closed-loop control strategy is also introduced to achieve good compensation performance. Finally, simulations and experimental results are presented to show the effectiveness.
机译：为解决固有的二阶纹波功率，开发了有源去耦方法。但是，在为单相电流源整流器（SCSR）开发的所有有源去耦方法中，直流输出电压都被限制为交流电源电压峰值幅度的一半。这限制了SCSR的广泛应用。针对此问题，本研究提出了一个两端口开关网络（TSN）系列，以同时实现纹波功率去耦和输出电压升压。通过将TSN插入常规SCSR的直流链路中来形成主电路。与大多数具有去耦功能的现有SCSR相比，没有添加额外的半导体器件。首先描述相关的工作原理和调制方案。然后讨论了去耦电容的选择。还引入了闭环控制策略以实现良好的补偿性能。最后，通过仿真和实验结果证明了该方法的有效性。

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