一种基于负阶电容的二次谐波电流抑制方法

In microgrid system, current in dc bus may contain a lot of undesired low-order harmonics when converters are employed, especially the second harmonic current (SHC). To address the issue, this article proposes a method based on fractional-order capacitor (FOC) to suppress the SHC. The FOC, of which the order α is “−1,” has the same characteristics of dc blocking and ac conducting as conventional c...