Different values from OpenDSS and python interface

EPRI Distribution System Simulator

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Different values from OpenDSS and python interface

Forum: Beginners

Creator: Paul Simonns

Created: 2024-08-28

Updated: 2024-08-28

Paul Simonns - 2024-08-28

Hello All,

I am running power flow for the same circuit using OpenDSS and PY-DSS interface using python. I am getting different values when doing so. Please help me to find out what I am doing wrong.

Thanks in advance!

OpenDSS command - Show Voltages LN Elem
Python command - DSSCircuit.ActiveElement.VoltagesMagAng (inside a for loop)

Last edit: Paul Simonns 2024-08-28

OpenDSS values.png

Python Values.png

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Paulo Radatz - 2024-08-28

Hi Glon,

py-dss-interface 2.0.4 uses the official OpenDSS version 9.8.0.1, but you can use the most recent version available on your computer. Please check this video: https://www.youtube.com/watch?v=sUZJfwor8xs&list=PLhdRxvt3nJ8xURfBipVoAx8du1a-S5YsL&index=2

The most recent OpenDSS version is likely 10.0.0.2. You might want to compare results from these two OpenDSS versions.

Another important consideration is whether you have the same conditions in py-dss-interface and OpenDSS. Could you share your OpenDSS and Python code so I can review them? See this video: https://www.youtube.com/watch?v=BIMcjZWpJek&list=PLhdRxvt3nJ8xURfBipVoAx8du1a-S5YsL&index=3

Best regards,

Paulo Radatz

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