Deliverables

     1. Solar Panels

a.       How the PV cells are connected in the solar panel?

                                                              i.      Each module consists of 72 solar cells connected in series providing sufficient voltage for battery charging under extreme high temperatures.

b.      How the PV cells are affected by “peak” sun hours, partial shade and nighttime?

                                                              i.      Max System Voltage 600Vdc

                                                            ii.      Series Fuse Rating 6 Amps

c.       How the efficiency of the solar cells would change according to high temperatures?

                                                              i.      Voltage Temperature coefficient (Voc) -0.35%/C

                                                            ii.      Current Temperature coefficient (Isc) 0.065%/C

                                                          iii.      Power Temperature coefficient (Pmax) -0.5%/C

                                                          iv.      Peak Power Tolerance +/-10%

d.      How the efficiency of the solar cells changes under different frequencies of light?

2  2.Batteries

a.       How the connection of the batteries would affect the DC load. The difference in having the batteries connected in series and parallel.

                                                              i.      1 battery in series to provide 12 V

                                                            ii.      4 batteries in parallel

b.      The most efficient connection vs the least effective connection.

                                                              i.      The most affective connection would be to have the batteries each in series and having both of those in parallel.

3  3. Labview and Micro Controller

a.       How a microcontroller along with lab view can be used to switch off the number of solar panels connected into the system. 

                                                              i.      Signal relays allow for on/off control

                                                            ii.      Connect/Disconnect panels to circuit for charging/discharging

b.      Demonstrate how different circuit breakers have been used within the system to protect it with overloads.

                                                              i.      Per datasheets, the appropriate fuses have been placed within the circuit.

                                                            ii.      Also, circuit breakers were added between the solar panels and relays to protect the relays.

c.       How different kinds of AWG wires were chosen to connect different components of the system.

                                                              i.      Per datasheets, the appropriate wires were used in the design.

                                                            ii.      To simplify and reduce costs, some gauge wires were decreased to accommodate for less variance of wire gauges. For example, using 4 AWG gauge wire instead of 6 AWG because 4  AWG was required for the earth ground but 6 or less was required for +/- of the inverter.

   4. Effects of Different AC and DC loads