Connect a PV block model to charge a battery

Hi, I have a simulink model for charging and discharging lithium acid battery. It consists of two batteries one is working as a power source and the other working as a charging source for the other battery when it reaches below 20%. The charging and discharging model is controlled by a MATLAB function using circuit breakers. Now I want to replace the changing battery with PV block model. What are the power electronics should I use to connect it. Because when I connect it directly, some error appears such as (NaN). So how could I connect a PV block model to a battery to charge it?

Answer 1

[Sabin]

Simscape Electrical provides many solar examples to start with. Check the Stand-Alone Solar PV DC Power System with Battery Backup example:

https://www.mathworks.com/help/sps/ug/stand-alone-solar-pv-dc-power-system-with-battery-backup.html