The series and parallel multicell converters have been introduced because they provide benefits in terms of efficiency and power density. However, they also allow reducing the amount of energy stored in the filters, which potentially allows for faster dynamic responses. Interleaving the control patterns of different cells is another distinctive feature of these converters and is also the root of another potential improvement of the dynamic response: with one pulsewidth modulation (PWM) update at each subcycle of the switching period, the n-cell converter may change its average output voltage over each of these intervals, while standard converters can only control the voltage over half the switching period. In this article, a general multirate modulation strategy taking advantage of this property, while avoiding an overswitching, and compatible with any n-cell converter is proposed and validated by simulation and experimental results.

中文翻译：

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用于高带宽多单元转换器的新型多速率调制器

引入串联和并联多单元转换器是因为它们在效率和功率密度方面具有优势。然而，它们也允许减少存储在滤波器中的能量，这可能允许更快的动态响应。交错不同单元的控制模式是这些转换器的另一个显着特征，也是动态响应的另一个潜在改进的根源：通过在开关周期的每个子周期进行一次脉宽调制 (PWM) 更新，n 单元转换器可以在每个间隔内改变其平均输出电压，而标准转换器只能在一半的开关周期内控制电压。在本文中，一种利用此特性的通用多速率调制策略，同时避免过度切换，