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amaity
576 ●9 ●24 ●31

Hi!

How do I copy the complete network data from a particular zone in NETA.sav to NETB.sav?

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You could create a "Power Flow Change Raw Data File" containing just the section from that particular zone. I can't see how to make one with the API - do you know how?

JervisW ( 2012-07-02 01:13:48 -0600 )edit

@JervisW I can't see how to do this with the API either. After a lot of reading and experimenting I found that the easiest way is to do it is through the PSSE GUI.

amaity ( 2012-07-02 11:23:58 -0600 )edit

@amaity yes, I think the GUI would be quicker. It isn't often that we need to transfer data. Would the RAWD method work?

JervisW ( 2012-07-03 12:25:35 -0600 )edit

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answered 2012-07-02 01:34:16 -0600

JervisW
1308 ●20 ●35 ●55

I remember using RAWD in the past. Here is how you might do this:

psspy.case('NETA.sav')
export_zones = [1]
psspy.bsys(sid=1, numzone=len(export_zones), zones=export_zones)

psspy.rawd_2(sid=1,
             all=0,
             status7=2, # create a RDCH file
             out=0, # redirect to file
             ofile='my-zone-1.raw')

That should create your "Power Flow Change Raw Data" file. The next main step is to read it in for NETB.sav

psspy.case('NETB.sav')
psspy.rdch(ifile='my-zone-1.raw')

I'm not sure what other problems will pop up. Here is a couple you might need to watch for:

Missing data The raw data file doesn't have sequence data, so you will need to find a way to export that.
Voltage and angle I'm not sure how psse treats the incoming data. But you may find that if the voltages and angles of the new buses are different, that you have difficulty solving

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answered 2022-12-09 08:05:22 -0600

Arun
1 ●1 ●1 ●1

What's the easiest way to duplicate certain network elements (e.g. add another transformer by copying an existing one in the basecase)?

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answered 2014-07-30 08:32:40 -0600

fran_jo
37 ●3 ●3 ●7

Hi,

I am new in PSSE for Python. My question is... after reading the .raw file with RDCH, then what? How to print this information? Is this information stored in memory, I guess, so how to access to the information we have just read?

Greetings!

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You'll have more success asking a new question rather than posting your question as an answer to someone else's question. Regardless, once you've used RDCH, the network will be in memory. You could save it as a separate SAV file for later (using save()).