In the REPCA model Vref=Vreg+Kc*Qbranch(pu) [1] with RfFlag=1 I have to do the following test: verifying model responds to the voltage reference set point step test from 1.0146 pu to 1.0222 pu at POI bus. Initialy (flat start) Vref=1.0142 due to the ecuation 1 (instead of the LF voltaje 1.0146). If I want to increase the reference setpoint to 1.022, how should I change VAR(L)?
At initialization, Vref = Vt+Kc*Qbranch.
During simulation, Verror = Vref-(Vt+Kc*Qbranch).
You want to make a step test from 1.0146 to 1.0222 pu. That is an increase with factor 1.00749.
With the actual Q loading of the plant and the chosen droop factor Kc, Vref shall be changed from 1.0142 to 1.0142*1.00749 = 1.0218.
Please note that due to the dróop Kc, the actual voltage will not reach 1.0222 pu.
Asked: 2020-05-25 05:04:45 -0500
Seen: 306 times
Last updated: May 26 '20
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