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Hello, in frequency loop of REPCTA dP is calculated over Pmax. Is there any way to change it and use the measured Power as in a UDM?

Thanks in advance

In the REPCA model for reactive control the deadband is defined using dbd1, lower threshold for reactive power control deadband (<=0) and dbd2, upper threshold for reactive power control deadband (>=0). Nevertheless, there are two CONs I can't understand, emax and emin ( upper/lower limit on deadband output (pu)). If you have a deadband of +/-0,01pu at field, are dbd1=-0.01 and dbd2=0.01? And emax/emin?

Thanks ina dvance

I have a REPCTA model with the frequency droop enable, Fflag=1 and Dup=0 and Ddn=0. therefore, during a system frequency test the power does not response increasing or decreasing power as TSO comments: "The expected response for the generator would be for the real power output to remain constant during this simulation."

The TSo has tested Frequency response test too: "Low and high frequency conditions are imposed at the generator's point of interconnection". I imagine that the changes in frequency are perfomed at generator's bus deleting the REPCTA module. Is it correct? I have set a playback connected to the genertor bus by a ideal line and modified f between 60.2 and 59.8HZ but active power does not change. I have not seen anything in REECA linked to frequency. Nevertheless, the TSO has showed me a plot in which P changes. How is the test perfomed at the machine level?

Hello, during simulation, frequency is constant (60hz) but when i plot it i see 0. Why?

In PSS/34 I can save a raw file as v33 but for dynamic file is there any difference between versions. can I save dyr a v33?

When you compare tests measurements to simulations using WECC models (i.e. REECA and REPCA models), the parameters you should modify are:

REECB REPCA Tunable Parameters pfflag |vflag |qflag ||refflag ||Local || Plant 0 |0 | 0 || 0 || Kqv || Kp, Ki 0 |0 | 0 || 1 || Kqv || Kp, Ki 0 |0 | 1 || 0 || Kqv,Kvp,Kvi || Kp, Ki 0 |0 | 1 || 1 || Kqv,Kvp,Kvi || Kp, Ki 0 |1 | 0 || 0 || Kqv || Kp, Ki 0 |1 | 0 || 1 || Kqv || Kp, Ki 0 |1 | 1 || 0 || Kqv,Kqp,Kqi,Kvp,Kvi || Kp, Ki 0 |1 | 1 || 1 || Kqv,Kqp,Kqi,Kvp,Kvi || Kp, Ki

Normally, in the studies I have seen only plant parameters are modified. The local parameters are the ones the manufacturer gives or should they be modified too?

If the system is the following: 999 SLACK BUS 10 POI 9 HVTRANSFORMERLEVEL 8 MVTRANSFORMERLEVEL There is a interconnection line between 9 and 10.

The PCC is regulating at 10 and the droop compensation is activated with Kc=0.05.

In REPCA model ICON: M=10 But which line should be monitorized? M+1=10 M+2=999 Or M+1=999 M+2=10

But in REPCA model: A) ICONS: M=1000, M+1=1000, M+2=5 B) ICONS: M=5, M+1=5, M+2=1000 Which option a) or b) should be modelled?

If measurement point is the same that the regulation point, should VCFlag=1 and Rc=Xc=0? Or Vcflag=0 and kc=0?

Thanks. So, everything should be referred to the measurement point and Rc and Xc adjusted to compensate. When should kc be used? What is the use of kc?

Other doubt is that Rc and Xc are available for voltage control but not for Q control.

If between POI (bus 1000) where you are regulating and measurement point (bus 5), there is a interconnection line, should REPCA model filled as follow? 5 Remote bus number or 0 for local voltage control 5 Monitored branch FROM bus 1000 Monitored branch TO bus '1' Monitored branch ID (enter within single quotes) 0 VCFlag, droop flag (0: with droop,1: line drop compensation) 1 RefFlag, flag for V or Q control(0: Q control, 1: V control) 1 Fflag, 0: disable frequency control, 1: enable

Altough your regulating point is 1000, you only have measurement feedback from 5.

Is Rc, Xc and Kc used to compensate the differenve between points? I see it exist for V but not for Q control. Maybe I understand wrongly for what Rc, Xc and Kc are implemented.

Should these values modified from thegiven by the manufacturer based on plant characteristics?

Thanks in advance

In PLNTBU1 there are two output signal, Wext and Pext which are the inputs in the two REAX4BU1 which are modelled.

When I have REPCA PPC, I modified Vref or Pref in order to get a change in the voltage or active power repectively. In the PLNTBU1, to get a voltage step at control bus, should Vref be modified? And to have a change in Pref should Plantpref be modified? When I changed Vref I can see an voltage step at POI whereas a change in Plantpref does not change anything.

What are AUX VAR used for? Are they linked to the Auxiliary-signal models (CHAAUT, CPAAUT, etc...) I don't have?

In REAX4BU1 there are wref1 and pref1? How are these vars calculated? Is something I can change?

i am performing MNOD26 and 27, and usually I modified kp, kpg, ki and kig. In this case, in PLNTBU1 I suppose the same k should be modified. But in REAX4BU1, can kw1 and kp1 be modified?

Inside PSSE34 I have the following folders: PSSPY27, PSSPY34 and PSSPY37. In C: I have python27 and 37. I have version 34.7 (In program files x86), 35.0 and 35.1 (in Program files) installed.