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Hello everyone, I am tring to use REGCA1 and REECCU1 to model the BESS.

Now I am using BESS to inject active power, but when I observe the output on the branch, It also exist reactive power injection. In order to observe the influence of the active power injection to the system, Is it possible to use the BESS only for injection of active power without reactive power injection ?

I have checked the "WECC Battery Storage Dynamic Modeling Guideline" but it seems to introduced only how the reactive power from loadflow influence the Iqcmd at the REECCU1 output.

If there is anything to take a look or any suggestion will be much appreciate! Thanks!