A variable bandwidth method for supraharmonic band aggregation

The difference between the emission laws of supraharmonic sources and traditional harmonic sources and the diversification of their control methods make the existing harmonic aggregation standards not fully suitable for the analysis of supraharmonics. Therefore, it is necessary to choose a suitable band aggregation method according to supraharmonic's characteristics. In this paper, the mechanism of supraharmonic generation of photovoltaic inverter is introduced. A variable bandwidth aggregation method suitable for supraharmonics is proposed. The bipolar photovoltaic emission model is taken as an example for verification. Finally, the supraharmonic emission in the actual PV test is introduced, and the effectiveness of the band aggregation method is further verified.