sanpen
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Hi,

I am trying to understand what does the ACCC calculation do, compared to the "brute force" approach.

When I think of the contingency analysis functionality in general terms, I think of a program that does this:

For each branch selected for contingency:
- Fail the branch
- Run power flow and record the results
- Recover the branch
- Continue

That explains the use of the .mon, .sub and .con files. However the dfax file is something related to the linear analysis (PTDF + LODF). If the ACCC needs the linear distribution factors, it is not doing the "brute force" approach, but rather a simplified or hybrid version.

So, how does it work? is there any publication or documentation that explains this in detail?

Thanks.

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answered 2020-12-07 08:03:58 -0500

jconto
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download this pdf doc: https://www.powerworld.com/files/A01L...

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Thanks, I was thinking about that document when I wrote the question. I have gone through it thoroughly in the last months trying to understand the linear approximations. However PSSe asks for a newton-raphson like algorithm for the ACCC. Hence the question.

sanpen ( 2020-12-07 09:01:58 -0500 )edit

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Asked: 2020-12-07 05:43:17 -0500

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How does the ACCC work?

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