Including OLTC transformers and batteries for OPF calculation

[mnbester]

Hello,
 
I am new to the Matpower environment and I was wondering if someone could 
provide assistance. I wish to run the OPF function on a distribution system, 
however in the system of interest, there is an OLTC transformer and a large 
scale battery storage system in addition to generators.
 
Is there any way I can go about including these features within the OPF?
 
Thank you for your time, any help would be much appreciated.
 
Mandy.