How to read the Pref value for a PV Power Plant (Generic) from an external file

Question

Hello,

I have a daily active power profile for a PV plant (1s granulatity, 24h duration) and want to use it as the profile of the PV plant present in the energy community (microgrid) that I am building.

While it is possible to use a SCADA input for setting the Qref, there is no SCADA input for the Pref. Instead, 'Irradiance' and 'Temperature' SCADA inputs are used are used for Pref. It is not straightforward how to set the active power reference, Pref, using a SCADA input and/or directly obtain the values from an external file.

Any hints?

Answer 1

Hello,

If you are using a PV Power Plant component, the input is the irradiance, that will be converted to power by the model, as it happens in a PV system.

If you have the power value, it means you don't need the PV part of the model, because you are bypassing it.

What about using the Battery Inverter (Microgrid library)?

For using your power profile, in the SCADA you can use "Macro" widget, and you have python libraries available like csv or pandas (use import command), then you can import your file, and work on your data for the simulation.

Regards,

Ricardo

Comments

Hello Ricardo,

Your feedback on using the "Macro" widget is clear and I know how to do what you suggest.

Another option that would allow me to keep the PV plant model is to get the 'Irradiance' and 'Temperature' data with the required granularity and import those data through "Macro" widgets instead of using slider widgets for 'Irradiance' and 'Temperature', as done in the example of the terrestrial microgrid. In this way, the PV model (Microgrid library) would not bypassed and I can use in my SCADA panel the rest of the functionalities that it is equipped with.

Regarding your question: "What about using the Battery Inverter (Microgrid library)?", could you please, expand? I am not sure that I am getting it. Do you suggest using this modelling element due to the fact that Pref can be set as an input ('4 - Pref')?

Best,

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Do you suggest using this modelling element due to the fact that Pref can be set as an input ('4 - Pref')?
Yes, if you have the power reference you would need only the inverter, as the PV model gives the power reference, you don't need it.

Regards,
Ricardo