how can we make DFIG reactive power Positive , currently it is showing negative reactive power?

i am working on a grid connected hybrid system (syn.gen+GFIG wind trubine)

i am facing two problems right now

1. i want to make reactive power of DFIG positive and dont know how to do that
2. Active power of my grid is coming negative and dont know the reason ? how i can solve this issue

Answer 1

[Joel Van Sickel]

Hello Zubair,

in order for a DFIG to control reactive power, it comes down to how your are controlling the DFIG. This is very dependent on how the DFIG is being used and how you have attatched drives to it.

Here is a good example to look at one way to use a DFIG: https://www.mathworks.com/help/physmod/sps/examples/wind-farm-dfig-detailed-model.html#:~:text=Wind%20turbines%20using%20a%20doubly,AC%20IGBT%2Dbased%20PWM%20converter.&text=In%20this%20example%20the%20wind,the%20speed%20at%201.2%20pu.

Regards,

Joel