In this paper, a high-frequency AC-link DC–AC converter is presented with detailed analysis. This converter is used as an interface between a dc power source and a grid. The studied converter is a universal power converter which consists of two bridges separated by an AC-link; each bridge is connected to a source or it feeds a load. The link of this converter contains a parallel pair inductance-capacitor. The inductance is used to stock/supply energy and for the link capacitor, it allows to perform soft switching during turning on/turning off of the switches. The studied converter has considerable advantages compared to the other topologies. Its fundamental properties are, especially, the compactness, reliability and efficiency which it ensures. Also, it guarantees longer lifetime and the possibility to transfer power in the two power flow directions. In this talk, the principles of the ac-link inverter operation are clearly explained in this paper. Simulation results, under MATLAB/SIMULINK, are shown to validate the correct operation and the efficiency of the proposed converter topology. The control algorithm is, also, experimentally implemented using a dSPACE 1104 control board.

中文翻译：

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软开关条件下工作的部分谐振高频AC-Link逆变器的研究与实现

在本文中，对高频交流环节 DC-AC 转换器进行了详细分析。该转换器用作直流电源和电网之间的接口。所研究的转换器是一种通用电源转换器，它由两个由交流链路隔开的电桥组成；每个桥都连接到源或为负载供电。该转换器的链路包含一对并联电感电容。电感用于储存/提供能量，对于链路电容器，它允许在开关开启/关闭期间执行软开关。与其他拓扑相比，所研究的转换器具有相当大的优势。它的基本特性尤其是它所确保的紧凑性、可靠性和效率。还，它保证了更长的使用寿命以及在两个功率流方向上传输功率的可能性。在本次演讲中，本文清楚地解释了交流链路逆变器的工作原理。在 MATLAB/SIMULINK 下显示的仿真结果验证了所提出的转换器拓扑的正确操作和效率。该控制算法还使用 dSPACE 1104 控制板进行了实验性实施。