In this week, we improve some of the object last week, that is changing the block diagram in temperature and solar irradiation calculation into system function. The reason is that the formula in the temperature and solar irradiation system contains a lot of variables and the calculation is complex. The block diagram will look very crowded and disordered if it is applied. However, the system function is using Matlab language to express the formula, it looks clearer and more simple. The following graph is showing the system function of the temperature and solar irradiation formula:
system function of temperature & solar irradiation
When the PV cell and the temperature & solar irradiation part was successfully completed. The combination of all the subsystems and connecting the circuit with the controlled voltage source, the controlled voltage source will generate DC voltage which has the same amplitude of the the input number calculated by the PV cell part. As a result, a DC voltage supply of photovoltaic is created. Moreover, the results I - V graph and P - V graph were similar to the results provided by the materials. During the office time, the supervisor ordered the group to do some more research about AC voltage supply with the PV cell and the three phase transformer need to be connected into the circuit in the end. The following graph shows the block diagram of the DC photovoltaic array circuit.
the DC circuit part
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