Hello Marene,
The abovementioned example model is designed to run on a setup consisting of two HIL simulators, which must be interconnected via both Ethernet ports 1 and 2. If haven't done already, please go though the application note which explains it in more details - LINK.
The problem you are mentioning is most likely caused by attempting to run the model in virtual HIL (vHIL) mode. Please, note that in this mode, all the communication protocol components (such as SV and GOOSE) are disabled and their outputs are zeroed. As a result. all SV Subscriber components will output zeroes, corresponding to 0A and 0V measurement in the switchyard. Consequently, the undervoltage protection will continuously trip.
To resolve the issue you should either:
1. Use the appropriate multi-HIL setup (if available), or
2. Bypass all switchyard measurements to go directly (not through communication components) to the control building. Please note that this approach undermines the purpose of the example. However, if your goal is to run the model in vHIL model at any cost, this is the only viable workaround.
Best regards,
Dusan
