cim5bl model

asked 2014-10-13 08:21:59 -0600

vinhnq.ovgu
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updated 2014-10-20 05:26:21 -0600

JervisW
1308 ●20 ●35 ●55

Hello friends, I am using cim5bl model for my dynamic studying. When I check DOCU for the model parameters, I get the notice as following:

*Model CIM5BL Bus 6 [10BBA       10.000] Load "4 " :
 Derived constant T" =      0.0031, outside of range > 0.0400 and < 0.2
 Derived constant X =      2.8900, outside of range > 0.0 and < 2.5
 Model CIM5BL is applied to bus 6 [10BBA       10.000] using load identifier "4"
    I C O N       C O N S     S T A T E S     V A R S      RES-ICONS
         8         86-104        46-51         10-20         74-77
     RA        XA        XM        R1        X1        R2        X2
    0.0300    0.0900    2.8000    0.0250    0.1100    0.1500    0.0400
     E1        S(E1)     E2        S(E2)     MBASE     PMULT     H
    1.0000    0.0400    1.2000    0.2000    2.9000    1.0000    0.5100
     VI        TI        TB        D       SYN-TOR        MOTOR TYPE
    0.0000    0.1000    0.1000    0.2100    0.0000             1*

How can I solve this problem? Trying to find out a formula about T'' and X but failed. I appreciate your answer and thank you so much!

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Thanks for editing, JervisW

vinhnq.ovgu ( 2014-10-20 13:38:23 -0600 )edit

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answered 2014-10-15 08:21:56 -0600

Cao Huy

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Please check out the section below (PSSE33) in PVAG2.pdf in PSSE folder. It has formulas to calculate T'' and X from Xa, Xm, X1, X2, w0 and R2.

20.2.6.0.1 Data Conversion From One Model Representation to Another.

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answered 2014-10-15 09:39:03 -0600

vinhnq.ovgu
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Thanks Cao Huy for your useful info. I found the solution couple days ago and now I am dealing with another problem. When I do the process for studying a dynamic case, no fault in DOCU and Initialization checking, even passed RUN step but when I open the .out file, PSSE has been "No responding" and I can not see the result. Could you or somebody give me your experience in this case? What is your processing for checking error in my situation? Thanks in advance!

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You may want to check time step of your simulation. Sometimes. when I use simulation time step which isn't small enoungh (maybe bigger than a particular time constant of models), the output files I got has nothing. To modify your time step, click on dynamic solution parameter on dynamic toolbar.

Cao Huy ( 2014-10-16 01:23:34 -0600 )edit

Btw, would you mind tell me how did you deal with the problem? What parameter did you adjust?

Cao Huy ( 2014-10-16 01:26:13 -0600 )edit

I know about the proportional relation between them, so I adjusted reactance values to satisfy the requirements (because my input data some way are wrong when I got it). I will try your advice with my problem now. Thanks a lot!

vinhnq.ovgu ( 2014-10-16 03:07:16 -0600 )edit

Hi Cao Huy, thought that I should cheer you a beer! It works when I try with your advice and now the result display very very clearly. Actually I ve met this trouble once and found the solution but I forgot that at the moment until you remind me about the time step. Once again, thanks so much!

vinhnq.ovgu ( 2014-10-16 07:35:53 -0600 )edit

You're welcome. I'm glad it helped.

Cao Huy ( 2014-10-16 20:42:39 -0600 )edit

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cim5bl model

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