A given solar cell has the following specifications:

Isc=4A
Voc=0.7V
36 identical cells with the above specifications are to be interconnected to create a PV module.

What is the open-circuit voltage (in V) of the PV module if all the solar cells are connected in a series configuration?

What is the short-circuit current (in A) of the PV module if all the solar cells are connected in a series configuration?

Now suppose that the PV module mentioned above is set up using a series connection of solar cells with the above mentioned specifications. Two of the solar cells have gone faulty (completely stopped generating power), but fortunately you have bypass diodes connected across the faulty solar cells. Assume that the bypass diodes are ideal (has a 0 voltage drop when conducting).

What is the measured open-circuit voltage (in V) of the above PV module with the faulty solar cells?

25.2 Volts

4A

23.8 Volts.

When you conect cells in series... the total voltage is CellV*number of cells. The current remain the same. without losses, the voltage remain the same.

No Ratan, C is the same with A..... 25.2Volt, due to no Voltage drop. This is the correct.

The answer is 25.2 V, 4 A, and 23.8 V

When two cells go faulty they do not produce power and since you by-pass them (they are as if they do not exisit, i.e., their voltage contribution becomes Zero, hence the total module voltage = 25.2-1.4 = 23.8 v

To find the open-circuit voltage (Voc) of the PV module when all the solar cells are connected in a series configuration, you need to understand how the voltages add up in a series circuit.

When solar cells are connected in series, the voltage adds up, while the current remains the same. So, in this case, since there are 36 identical solar cells in series, the open-circuit voltage of the PV module will be the sum of the individual cell voltages.

Given that each solar cell has a Voc of 0.7V, and there are 36 cells in total, the open-circuit voltage of the PV module can be calculated by multiplying the Voc of a single cell with the total number of cells:

Open-circuit voltage of PV module = 0.7V * 36 = 25.2V

Therefore, the open-circuit voltage of the PV module, when all the solar cells are connected in a series configuration, is 25.2V.

Now, let's move on to calculating the short-circuit current (Isc) of the PV module when all the solar cells are connected in a series configuration.

When solar cells are connected in series, the current remains the same, while the voltage does not add up. So, in this case, the short-circuit current of the PV module will be the same as the short-circuit current of a single cell.

Given that each solar cell has an Isc of 4A, the short-circuit current of the PV module, when all the solar cells are connected in a series configuration, will also be 4A.

Therefore, the short-circuit current of the PV module is 4A.

Now, for the last part of your question, let's consider the scenario where two of the solar cells have gone faulty.

Since you have bypass diodes connected across the faulty cells, the bypass diodes will ensure that the current from the functioning cells flows around the faulty cells, preventing any voltage drop across them due to their fault.

In this case, when the PV module is open-circuited, the open-circuit voltage will not be affected by the faulty cells or the bypass diodes. So, the measured open-circuit voltage of the PV module with the faulty cells will still be the same as before, which is 25.2V.

Therefore, the measured open-circuit voltage of the PV module, with the two faulty solar cells bypassed by ideal diodes, is 25.2V.