Hi,

For two reasons

1. DFIG (double fed induction generator) technology is based on the transferring the power flow to the grid through a converter more safely and reliably. e.g. it can handle the transient gird events effectively without causing a total damage to generator,

2. The reactive power requirement from the grid is lower to energize the generator compared to full scale power converter.

Regards

the electrical power conveyed through the rotor is g*Pab or gmax=1/3 for this purpose the DFIG converters are sized to support a reduced power compared to the nominal power of the machine

Hi, i think that:

-Partial scaling of the power converter, for example, involves sizing it for conditions that are less than the absolute maximum. This could be based on statistical analysis of wind patterns, historical data, and other factors.

-It allows for cost savings while still meeting the necessary performance requirements, as components are not oversized for events that might occur rarely.

But in full scaling, all components, including the power converter, are fully scaled, they are designed to handle the maximum power fluctuations, grid disturbances, and other extreme conditions, but might lead to higher costs.