Sketch two ways in which solar cells can be connected. Also draw the
diagrams to show the arrangement of solar cells to form solar panel and
solar array
Answers
Answer:
Panels can only be connected in two ways – parallel connection or series connection. The current (amperage) is additive when connecting solar panels in parallel, but the voltage stays the same. For example, when connecting 4 solar panels in parallel and each panel is rated at 12 volts and 5 amps, the entire array would be 12 volts and 20 amps. Parallel circuits have several paths for the current to move.
Explanation:
Panels can only be connected in two ways – parallel connection or series connection. The current (amperage) is additive when connecting solar panels in parallel, but the voltage stays the same. For example, when connecting 4 solar panels in parallel and each panel is rated at 12 volts and 5 amps, the entire array would be 12 volts and 20 amps. Parallel circuits have several paths for the current to move.
In small solar modules, the solar cells are usually connected in series, so the parallel mismatch is not an issue. Solar modules are connected in parallel in large arrays, so the mismatch usually applies at the module level rather than at the cell level. For solar cells or modules connected in parallel:V1=V2 and IT=I1+I2 For Solar cells connected in parallel, the voltage across the cell combination is always equal, and the total produced current from the combination is the sum of the produced currents in the individual cells. From the above information, it is clear that for connecting solar panels in parallel, the solar panels must have the same voltage, otherwise the total voltage of the array will drop. Yet, for the current (amperage) it can be different, as the total current is the sum of the currents in individual panels. So the mismatch for solar cells connected in parallel is primarily concerned with connection of cells which have different voltage rating, as it can cause a significant drop in output value.
#SPJ3
The sketch is shown below.
Explanation:
- Only parallel and series connections are permitted when joining panels.
- When solar panels are connected in parallel, the voltage does not change, but the current (amperage) does.
- For instance, if four solar panels are connected in parallel and each one has a rating of 12 volts and 5 amps, the total output of the array would be 12 volts and 20 amps.
- The current can go through multiple routes in parallel circuits.
- Since solar cells in small solar modules are often connected in series, a parallel mismatch is not a problem.
- Large solar arrays connect solar modules in parallel, therefore the mismatch typically affects modules rather than cells.
- For solar modules or cells that are linked in parallel: IT = I1+I2 and V1=V2.
- When solar cells are connected in parallel, the voltage across the cell combination is always the same, and the combined total of the individual cells' produced currents is the combination's total produced current.
- The information above makes it evident that in order to link solar panels in parallel, they must all have the same voltage; otherwise, the array's overall voltage will decline.
- However, as the overall current is the sum of the currents in each individual panel, the current (amperage) might vary. Due to the potential for a sizable decrease in output value, the mismatch for solar cells linked in parallel is therefore primarily concerned with the connection of cells with differing voltage ratings.
#SPJ2
