Verifications on batteries

Verifications on batteries

 

Performs the following verifications on all batteries in the system in order to check the correct compatibility with the charge controller, if the battery is in the DC section or with the inverter/charger, if the battery is in the AC section.

 

Battery in DC section:

  • Limits of voltage incoming on charge controller: The open circuit voltage, at the module temperature, of the photovoltaic field connected to the charge controller must be less than the maximum voltage allowed by the charging controller. Also, if the charge controller has a Mppt then the minimum Mppt voltage from photovoltaic field must be greater than the minimum Mppt voltage allowed by the charge controller, and similarly the maximum Mppt voltage from photovoltaic field must be lower than the maximum Mppt voltage allowed by the charge controller. Finally the maximum power from photovoltaic field must be lower that the maximum operating power of charge controller and the charge controller voltage output must be equal to nominal voltage of battery bank.

  • Limits of current incoming on charge controller: TThe short-circuit current of the photovoltaic field must be lower than the maximum current capabilities of charge controller.

  • Limits of power incoming on charge controller: The power of photovoltaic field must be lower than the permissible power incoming to the charge controller.

 

Battery in AC section:

  • Limits on the battery charging voltage: The battery voltage must be between the minimum and maximum charging voltage for the inverter/charger.