I want to suddenly change wind generator's voltage during dynamic simulation. Please help.
I am working on the IEEE 14-bus system and have replaced one of the generators with a wind turbine using the standard "QT QB limit" and set the WPF to 0.95. The dynamic models used are WT4E1 and WT4G1. In the raw data, I have provided sufficient reactive power reserve (via Qmax and Qmin limits) to allow the reactive power output to vary at least slightly when commanded by the control models. I have attempted to create a step response in reactive power output but was unsuccessful. For this, I ensured that Qflags or Qcontrol mode was assigned and tried changing the Vref and VARS in WT4E1. I also tried changing Qref and Pref but observed no change in the output power plots. Please advise.
Dynamic data sample:
3018 'WT4G1' 1 0.02 0.02 1 0.90 1.11 1.20
2.00 2.00 0.02 /
3018 'WT4E1' 1 0 0 1 0 0.15 18.0 5.00 0.05 0.10 0.00 0.08 1.5 -0.47 1.10 0.00 0.5 -0.5 0.05 0.10 0.90 1.10 120.0 0.05 0.05 1.70 1.11 1.11 /