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Question about coordinated call models

asked 2022-04-12 11:15:46 -0500

PSSE_Learner gravatar image

Hi Guys,

I need some help in coordinated call models in PSSE. I have written a simple user models which takes voltage as input and calcuates the injected current (real and imaginary parts) based on the voltage dip. I set the P and Q fixed.

Some how the injected currents do not match with the hand calculation. Maybe i am missing something or am i doing something wrong ?. Any help would be really appreciated.

It is also very hard to get a working example of a coordinated call model.

Below is the Fortran Code

  SUBROUTINE CCMTRY (MC, ISLOT)
  INCLUDE 'COMON4.INS'  
  INTEGER MC,ISLOT,IB, J, K, L
  COMPLEX PQ
  REAL VM,VFilt
  INTRINSIC ABS,CONJG,AIMAG

  J = STRTIN(1,ISLOT)
  K = STRTIN(2,ISLOT)
  L = STRTIN(3,ISLOT) 

  IB=NUMTRM(MC)
  IF(IB.LE.0)RETURN
  IF (MODE .GE. 4)RETURN

  VM = ABS (VOLT(IB))
  IF (MODE .EQ. 1)THEN
  STATE(K) = VM
  ENDIF

  IF (MODE .EQ. 2)THEN
  DSTATE (K) = (VM-STATE(K))/CON(J)
  ENDIF

  IF (MODE .EQ. 3)THEN
  VFilt = MAX(STATE(K),0.0)
  VAR(L) = VFilt
  ENDIF

  IF (MODE .EQ. 4)THEN
  NINTEG = MAX(NINTEG,K)
  ENDIF
  RETURN     

  ENTRY TCMTRY(MC,ISLOT)

  IB=NUMTRM(MC)
  IF(IB.LE.0)RETURN

  PQ=(0.5,0.3)

  CURNT(IB)=CURNT(IB)+CONJG(PQ/VFilt)

  VAR(L+1) = REAL(CONJG(PQ/VFilt))
  VAR(L+2) = AIMAG(CONJG(PQ/VFilt))

  RETURN
  END

Below is the dyr file i used

  1 'USRMDL' 1 'CCMTRY' 101 1 0 1 1 3/
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answered 2022-04-12 12:20:16 -0500

perolofl gravatar image

Variable VFilt is a local variable and should not be referenced after ENTRY TCMTRY. Use the value stored in VAR(L) instead.

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Comments

Thank you for your answer. Do you think that the code is Ok other than that ? . One more question, can i use ISOURCE with wind generator or it can be only be used with synchrnous machine ?. Thank you very much for your kind help.

PSSE_Learner gravatar imagePSSE_Learner ( 2022-04-12 12:24:54 -0500 )edit

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Asked: 2022-04-12 11:15:46 -0500

Seen: 73 times

Last updated: Apr 12