Future Work
In future iterations to this project, we would incorporate a maximum power point tracker into the overall system. Simulating the high-level and the low-level controls (buck-boost controller) to handle the transitions between operating states of the system was one of the most challenging aspects of the project. With a maximum power point tracker, we would be able to run the simulation and have it change states based on the information received. Based on the fact that we were able to successfully model the transitions between operating states, we believe that the implementation of maximum power point tracking should not require considerable changes to the overall simulation. The major obstacle to implementing MPPT would be carefully investigating the timing of the dithering as well as possibly considering a more robust MPPT algorithm if we were to use more than one PV Panel as the input to our whole system.
Also, the controllers do not have current limiting logic to prevent the input capacitor from being excessively drained, which becomes a problem when the input voltage droops so low that the power point of the PV becomes too low to sustain the output load.
Also, the controllers do not have current limiting logic to prevent the input capacitor from being excessively drained, which becomes a problem when the input voltage droops so low that the power point of the PV becomes too low to sustain the output load.