BUG: Memory Error and T-side simulation continues beyond specified end time

[rozan977]

Describe the bug The simulation throws a memory error and doesn't end at the end time specified on the config file. To Reproduce Steps to reproduce the behavior: The config had 33 distribution system with the following configuration: { "nodenumber": 117, "filePath": ["..\SampleData\DNetworks\123Bus\case123ZIP.dss"], "solarFlag":1, "solarPenetration":0.2, "DERParameters":{ "pvderScale": 1, "V_LV0": 0.50,
"V_LV1": 0.70, "V_LV2": 0.88, "t_LV0_limit": 0.04,
"t_LV1_limit": 0.05,
"t_LV2_limit": 0.06, "V_HV1":1.15, "V_HV2":1.20, "t_HV1_limit": 3.0, "t_HV2_limit": 0.016, "VRT_INSTANTANEOUS_TRIP": false, "VRT_MOMENTARY_CESSATION": false, "OUTPUT_RESTORE_DELAY": 0.5, "power_rating":50, "SteadyState":true } }

Expected behavior A clear and concise description of what you expected to happen.

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Desktop (please complete the following information):

• OS: [e.g. Windows 10]
• PSS/E Version [e.g. 33.3.0]

PSSE/E version 33.3.0 is used

Additional context Add any other context about the problem here.

[sibyjackgrove]

I wanted to check whether this failure had something to do with wrong frequency information in the PV-DER model. So I did a co-simulation using @rozan977 config file (with 33 feeders) after enabling the frequency estimation from the phase angle flag for the PV-DER model. However, I am still getting the same error.

[yim0331]

This issue occurs by the out of memory size of the computer comparing to the size of the "S" values. You can check our server computer.

When I tested in the machine, it does not occur.

[yim0331]

@sibyjackgrove Were you able to test the code according to this issue? I have no chance to run the memory error fix code due to the PSSE license issue. Please let me know the test result.

[sibyjackgrove]

Resolve with commit 0d422d208059353030a87815938c67918c766991, e4e79ae3a0905ad3178228e0d56e219cc3e968d5