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unbalanced fault dynamics

asked 2018-08-10 18:24:26 -0500

vikram gravatar image

Hi, I am not an expert in PSSe. But I am trying to do an unbalanced fault analysis. For example, I want to do Phase A-G fault at certain fraction of line in the system and run dynamics. I also want to do other phase to ground faults and phase faults and all other line faults.

I also want to get the data such as Phase A, B, C voltages and currents as well as Positive, negative and zero sequence voltages and currents after running the unbalanced faults.

Is this possible to do it in PSSe?

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@vikram Do you know how to do it above? Could you please help me OK? I have the same question as what you shown above. Thanks a lot.

Gloria.Z gravatar imageGloria.Z ( 2018-10-22 05:44:58 -0500 )edit

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answered 2018-08-15 02:20:37 -0500

jfconroy gravatar image

You can use PSSE's short-circuit calculation procedures to get the sequence components of voltage and current due to an unbalanced fault. However, this is a "static" calculation, calculating the sequence components at one instance in time, immediately after the fault. It sounds like you want to do a dynamic simulation, and calculate the sequence components as a function of time, let's say in the 1s following the occurrence of the fault. This is not possible in PSSE dynamics, which considers the positive sequence only. There are other software packages that do provide such a calculation function, but I am wary of mentioning any names here to prevent any accusation of bias.

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Asked: 2018-08-10 18:24:26 -0500

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Last updated: Aug 15 '18