PV Cell For Solar Inverter

To develop a solar inverter system, it is important to first understand the different characteristics of solar cells (PV cells). Rp and Rs are parasitic resistors, ideally infinite and zero respectively.
Light intensity and temperature can greatly affect the operating characteristics of PV cells. The current is directly proportional to the light intensity, but the change of light has little effect on the operating voltage. However, the operating voltage is affected by temperature. Increasing the temperature of the battery reduces the operating voltage, but has little effect on the generated current. The following diagram illustrates the effect of temperature and light on the PV module.
The influence of light intensity change on battery output power is greater than that of temperature change. This applies to all commonly used PV materials. The important result of the combination of these two effects is that the power of the PV cell decreases as the light intensity decreases and/or the temperature increases.