This letter proposes an interlinking converter architecture, which enables flexibly integrating renewable energy into hybrid grids. The proposed converter has one ac port, and two dc ports, offering a flexible solution to integrating various dc, and ac sources, which can also be versatilely configured as a dc–dc converter, a dc–ac inverter, or a dc–dc/ac multiport converter. The general concept of the architecture, its common-mode voltage analysis, and flexible operation modes are detailed in this letter. Experimental tests are performed on an example converter with a dedicated modulation strategy. The test results confirm the concept in terms of flexible conversion, high power density, low leakage currents, as well as controllable power flow.

中文翻译：

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用于将可再生能源集成到混合电网的互连转换器

这封信提出了一种互连的转换器架构，可以灵活地将可再生能源整合到混合电网中。所提议的转换器具有一个交流端口和两个直流端口，为集成各种直流和交流电源提供了一种灵活的解决方案，还可以灵活配置为直流-直流转换器、直流-交流逆变器或直流-直流/ac 多端口转换器。这封信详细介绍了该架构的一般概念、共模电压分析和灵活的操作模式。在具有专用调制策略的示例转换器上执行实验测试。测试结果在灵活转换、高功率密度、低漏电流以及可控功率流方面证实了该概念。