rajeev070707's profile - activity

Thank for your answer. I also figured that and I was able to implement it in MATLAB out but I was wondering how to write it in a loop in python.

Dear all, I want to change exciter reference, load, and turbine reference continuously in the time domain (randomly or sinusoidally) using python code. Is there any way to do it.
I searched for it and found that 'dynamicsolutionparam_2', 'ALTR', may help to change the solution parameter during run time.
It will be very helpful for me if someone could help me with this. Thanks in advance.

Thank you jconto for a well-illustrated explanation.

Dear all, I want to limit the generation of a few generators in a subsystem "source" while doing PV analysis. I am trying to do this by incorporating an economic load dispatch file (for example savnw.*ecd) during PV analysis but there is no change in generation from generators or there is no change in transfer limit in the base case or contingency case. I want to know what I am doing wrong. In addition to this, it will be very helpful if someone tells me that when we are incrementing loads in "sink" subsystem what happens to the generator present in that subsystem ('sink') or generators present in other subsystems apart from ('source') subsystem. Are those also trying to meet the increment in load?

Thanks in advance

Thank you for your suggestion ..I tried to vary Paero too as shown in the python code (edited with the main question) but still there is no change..

I have changed the parameters given in CONs of WT3T1 but did not change VAR. there is confusion for the base selection for the conversion of these variables and how to write that in Python.

I am trying to see the effect of wind variation on the power system but could not see any change in system response with change in any parameter of the wind machine. I have used WT3E1, WT3T1 or WT3G1 in my power system. Is there any way to see this. Someone suggested me to model the wind machine as negative load and change the value stochastically. Is this the only way to see the stochastic variation of wind in the system in PSSe and if yes then how to do that either in GUI or python. Thank you in advance for your help.

I am adding python code to change Paero variable of the WT3T1 VAR(L+4) but still there is no effect from wind plant side

psspy.read(0,r"""C:\Users\admin\xxxxxxxx\NE with wind.raw""")
psspy.dyre_new([1,1,1,1],r"""C:\Users\admin\xxxxxxx\NE with wind.dyr""","","","")
psspy.nsol([0,0,0,1,1,0,-1])
psspy.cong(0)
psspy.conl(0,1,1,[0,0],[0.0,0.0,0.0,0.0])
psspy.conl(0,1,2,[0,0],[0.0,0.0,0.0,0.0])
psspy.conl(0,1,3,[0,0],[0.0,0.0,0.0,0.0])
psspy.chsb(0,1,[-1,-1,-1,1,2,0])
psspy.chsb(0,1,[-1,-1,-1,1,7,0])
psspy.chsb(0,1,[-1,-1,-1,1,15,0])
psspy.strt_2([1,0],r"""C:\Users\admin\xxxxxxxx\wind_spd_Change1.out""")
psspy.run(1, 1.5,0,0,0)
psspy.change_wnmod_var(1,r"""1""",r"""WT3T1""",5, 150.0)  # change wind plant initial output to 150
psspy.run(1, 3.5,0,0,0)
psspy.change_wnmod_var(1,r"""1""",r"""WT3T1""",5, 300.0)  # change wind plant initial output to 300
psspy.run(1, 5.0,0,0,0)
psspy.change_wnmod_var(1,r"""1""",r"""WT3T1""",5, 200.0)  # change wind plant initial output to 200
psspy.run(1, 9.5,0,0,0)