Generic model question

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you should REPCB for multi machine control

I have looked at the model documentation and it seems that REPCA is designed for basic usage (one generator and one plant controller). It does not seem to have the capability that you want. I know that some user-defined plant control models provided by manufacturers have that capability, but those models are only made available under confidentiality agreements for specific projects.

Jorge, even in the newest v35.1 there isn't the REPCMU1, even though it was mentioned to be released maybe an year or two ago.

If I recall it correctly, Siemens PTI developed a generic plant controller REPCMU1 capable of controlling multiple units at plant level. I saw it in an IEEE presentation. I am not sure though if it will be part of the library model and when it will be released.

I have found a possible solution, and I would like to share it with the community in case anyone might be interested.

In this case, one would use the model PLNTBU. This model is exactly the same as the well known REPCA; however, the advantage with PLNTBU is that one can attach this model to a different busbar the generator is connected, in my particular case I choose to do so at the POI above the main transformer. Moreover, because PLNTBU allow for additional reference signals (i.e. Vaux, Paux and Qaux) one can control two inverter models with one plant level controller by assigning the Vref (VAR L) to INV1 and Vaux (VAR L+10) to INV2 for example.

Finally, it is necessary to use the Renewable Energy Auxiliary Control Model (REAX4BU), as this component would be the interface for each of the electrical control (REECU) models which in turn send the control signals to the inverter model (REGCA).