How to add model "VTGTPAT"
Hello everyone： Now I'm trying to simulate the renewable stored energy's low voltage ride through function. I use REGCAU1、REPCAU1、REECAU1 to simulated the renewable stored energy, and VTGTPAT to simulate low voltage ride through function. I want the renewable stored energy can still working for 1 sec when voltage drop to 0.5pu, but it doesn't work.
This is my python code. My enewable stored energy's bus number is "1", and bus code is "1", too.
psspy.addcctmscomodel(r"""VTGTPAT""",_i,3,[0,1,1],["","",""],4,[0.5,1.2,1,0.05])
Could someone tell me where is my problem, please. Sincerely, thanks.
What do you mean with "it doesn't work"? Does model VTGTPAT trip the generator?
Oops!!! I find the mistake that I didn't notice. Thank you.
Could I ask what is the different between "Relay pickup time" and "Breaker time" ?
Relay pickup time is the time the voltage must be over/under the limit to activate trip signal to the breaker. Breaker time is the time the breaker needs to open.
For example, if VL=0.8pu, Pickup time=2sec, Breaker time=0.1sec, the relay will start to work when voltage below 0.8pu over 2sec, then the breaker will trip the generator after 0.1sec. Is this correct?