External characteristic model of photovoltaic cells

What are the characteristics of a PV cell?

In a single diode model, a complete characteristic of a PV cell’s can be described by five model parameters i.e.: light generated current, leakage or reverse saturation current, diode quality factor, series resistance and shunt resistance.

What are the characteristic curves of a solar PV cell?

The point of interest of the characteristic curves of a solar PV cell is the Maximum Power Point (MPP). Different algorithms for tracking the MPP require the model of the solar PV cell for simulation. The model used for simulation can be very useful for designing controllers/compensators to track the MPP and for larger power system.

Which circuit models are used to describe a photovoltaic (PV) cell?

Presently, many equivalent circuit models have been developed and proposed to describe the photovoltaic (PV) cell's characteristics, and the most commonly used are single and double diode models.

What is a photovoltaic cell (PV)?

Photovoltaic cells (PV) are tools used for the effective and sustainable conversion of the abundant and radiant light energy from the sun into electrical energy [4, 5, 6, 7, 8]. In its basic form, a PV is an interconnection of multiple solar cells aimed at achieving maximum energy output (see Figure 1).

How many models are used to describe the iâ€V characteristic of solar cells?

Several models have been developed to describe the I–V characteristic of solar cells, but only two models are used in practice i.e. single diode model and double diode model (Askarzadeh and Rezazadeh, 2013).

What is a single diode model of a PV cell?

In a single diode model, a complete characteristic of a PV cell’s can be described by five model parameters (called as five lumped parameters) i.e.: light generated current (Il), leakage or reverse saturation current (Io), diode quality factor (n), series resistance (Rs) and shunt resistance (Rsh).