Initial Conditions Suspects

asked 2023-04-19 16:07:50 -0500

Erandika
13 ●6 ●7 ●10

Hi everyone,

I'm performing a dynamic simulation for a large power system, and I got initial condition suspects for CMLDBLU2 models. Could someone help me understand how to resolve it, thanks.

 INITIAL CONDITIONS SUSPECT:
     I      DSTATE(I)       STATE(I)        MODEL      STATE     BUS#-SCT X-- NAME --X BASKV  ID
  71628     0.97520E-02     0.73156         GGOV1       K+2     1           GEN 1       18.000  1
  78978     -0.10885        2.2293          PIDGOV      K+6     2     GEN 7G6     7.2000  6
  79078     0.13712         0.89890         HYG3U1      K+6     3     GEN 13G4    13.200  4
   96758    0.72085E-04     -0.15771E-02    CMLDBLU2    K+7     4     CHQ-230     230.00  2
  96764     0.10331E-03     -0.15771E-02    CMLDBLU2    K+13    4     CHQ-230     230.00  2
 140223     0.45542E-04     -0.41939E-02    CMLDBLU2    K+2     6     LOAD 2      115.00  N
 140545     0.55042E-04     -0.33355E-02    CMLDBLU2    K       7     LOAD 2      115.00  1
 142059     0.46939E-04     -0.36872E-02    CMLDBLU2    K+2     10    LOAD 5      115.00  N1
 142464     0.46660E-04     -0.45174E-02    CMLDBLU2    K+2     11    LOAD 6      115.00  1
 143623     0.51479E-04      0.10855E-02    CMLDBLU2    K       12    LOAD 7      115.00  1

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Have you checked the log file for warnings on the CMLD models? These types of messages may exist: At bus 4, CMLD load bus voltage of 0.9471 pu is below 0.95 minimum. Original feeder Z of 0.2295 +j 0.2295 pu on SBASE will be reduced in an attempt to bring V up above 0.95 pu

GaryB ( 2023-04-20 16:34:40 -0500 )edit

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Hello, yeah I figured out it and could solve it. But I'm trying to solve the CMLDBLU2 models. Any comments to start with would be appreciated.

Erandika ( 2023-04-20 08:16:04 -0500 )edit

Didn't CMLDBLU2 messages disappear when you fixed the governor problems????

perolofl ( 2023-04-20 08:53:29 -0500 )edit

No, I have mentioned a part of the initial conditions suspects in this post. There are about 70 of CMLDBLU2 suspects in the original log file. I'm doing this dynamic simulation for a large power system.

Erandika ( 2023-04-20 10:00:52 -0500 )edit

Just to be sure what you mean. Have you redone the inialisation after correcting generators at bus 2 and 3?

perolofl ( 2023-04-20 10:26:23 -0500 )edit

Yeah, I did. I initialized the case after correcting the generators.

Erandika ( 2023-04-20 10:35:01 -0500 )edit

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Initial Conditions Suspects

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