# How to incorporate wind speed variation and turbulence spectrum into PSSE load flow and dynamics studies?

For renewable simulation of South Australian Grid with Type-3 wind power plants, I've two wind machines of 50 MW each and used the following dynamic models so far:

```
1. Generator model: WT3G2
2. Electrical model: WT3E1
3. Mechanical model: WT3T1
4. Pitch model: WT3P1
```

As I've seen, the wind power plants basically act as constant power source of 50 MW as no wind speed variability is incorporated. From this paper I've seen that the wind speed variability was modelled using Bivariate Weibull distribution (1) and Turbulence was modelled using Kaimal Spectrum (2).

My question is: how do I model these 2 things into my PSSE simulation? Where and how do I add them?

** N.B.** I'm using PSSE Xplore 34 which allows me to include the following models as well:

- Aerodynamic model: WT12A1, WTARA1
- Torque control model WTTQA1
- Auxiliary (plant control) model: REPCA1, REPCTA1

Sadly, no Gust models available.