This paper proposes a reversible indirect matrix converter that expands the output voltage range. The proposed circuit has two operation modes. A buck mode that supplies an output voltage lower than the input voltage, and a boost mode that supplies an output voltage higher than the input voltage. In the boost mode, the proposed circuit has the characteristics of the current type inverter therefore, it is possible to obtain an output voltage with less harmonics. The proposed system is validated with a 2 kW prototype. The proposed circuit shows that the input/output voltage ratio of AC/AC direct conversion obtained is 0 to 1.2 or more. Moreover, the conversion efficiency of the proposed circuit is 92.8%.

中文翻译：

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使用可逆间接矩阵转换器扩展AC / AC转换器的输出电压范围

本文提出了一种可逆的间接矩阵转换器，该转换器可扩展输出电压范围。所提出的电路具有两种工作模式。降压模式提供的输出电压低于输入电压，升压模式提供的输出电压高于输入电压。在升压模式中，所提出的电路具有电流型逆变器的特性，因此，可以获得谐波较少的输出电压。所建议的系统已通过2 kW原型验证。所提出的电路表明，所获得的AC / AC直接转换的输入/输出电压比为0至1.2或更大。此外，所提出的电路的转换效率为92.8％。