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Hi, Does anyone know how to change the voltage reference for REECA1 and REGCA1 models in PSSE 34.0.1? "Change V_ref" command doesn't work as that is not for renewable it seems like. I tried changing variable 5 (L - Bus reference voltage (Vref0)) during the simulation but it didn't do anything:

psspy.run(0, 5.0,1,1,0) #run for 5 seconds psspy.changevar(5,0.5) #change vref to 0.5 psspy.run(0, 6.0,1,1,0) #run to 6 seconds

I am trying to the step response by changing the voltage and power reference internal to the REECA1 and REGCA1 at 5 seconds in model instead of using a playback model. Any suggestion will be helpful. Thanks!