If the PV power is insufficient and ultracapacitors are discharged, it is not possible to supply the real-time ower reference.
This mode is called the “no real-time power dispatching mode.”
Thus, one algorithm (corresponding to one operating mode) is executed and calculates the power references for each source according to the selected operating mode and the measured quantities (see Fig. 15). These power references are then transformed to current or voltage references for closed loop controls [27].