论文标题
最佳混合多重AC-DC-AC转换器
Optimal Hybrid Multiplexed AC-DC-AC converters
论文作者
论文摘要
可以通过更改单个AC-DC转换器阶段的大小并将这些转换器的AC侧连接到机电开关（多路复用器）以允许在网络中重新配置的多末端AC-DC-AC转换器的灵活性可以提高分配网络中连接的分布网络。可以使用功能图来描述可以通过这种设计传输的真实力量的组合。在这项工作中，建议这些能力图表的区域是描述这种设备灵活性的有意义的指标。这些能力图表区域以封闭形式计算，用于由三个AC-DC转换器组成的三个末端AC-DC-AC设备，该设备的三个AC-DC转换器的任意大小，从而可以确定最佳的AC-DC转换器尺寸，以最大程度地提高该区域。结果表明，该最佳设计产生的能力图面积比常规尺寸同等大小的AC-DC-AC转换器的等效区域大64％。讨论了在其他感觉上是最佳的转换器，例如每次进料机实际功率传递10％的设计，尽管面积减少了8％。得出的结论是，功能图面积是一种直观且有益的方法，用于描述多路复用AC-DC-AC转换器的灵活性的提高。
The flexibility of multi-terminal AC-DC-AC converters connected in distribution networks can be increased by changing the sizes of the individual AC-DC converter stages and connecting the AC side of those converters to electromechanical switches (multiplexers) to allow reconfiguration within the network. The combinations of real powers that can be transferred by such a design can be described using a capability chart. In this work, it is proposed that the area of these capability charts is a meaningful metric for describing the flexibility of such a device. These capability chart areas are calculated in closed form for a three-terminal AC-DC-AC device consisting of three AC-DC converters of arbitrary sizes, allowing the optimal AC-DC converter sizing to be determined to maximise this area. It is shown that this optimal design yields a capability chart area that is 64% larger than the equivalent area from a conventional equally-sized AC-DC-AC converter. Converters which are optimal in other senses are discussed, such as a design with 10% increased per-feeder real power transfer, albeit with an 8% area reduction. It is concluded that the capability chart area is an intuitive and informative approach for describing the increased flexibility of multiplexed AC-DC-AC converters.
