Evaluation of the main mppt techniques for photovoltaic applications

Are MPPT methods suitable for PV system?

4. Conclusions According to the above classification and summary of MPPT techniques, it is seen that research on MPPT methods for PV system has been an active topic for a long time, but further research is needed on the balance of rapidity, accuracy and stability of MPPT, especially under complex fast-changing irradiation conditions.

What is MPPT & how does it work?

It is well recognized that MPPT is an operating point approach connected between PV arrays and a power converter to extract the maximum power energy. To perfect energy extraction in PV systems at any environmental condition, especially solar irradiance, and temperature, MPPT techniques are used.

Can MPPT control improve the efficiency of PV cells?

One important technique to maximize the efficiency of a given PV cells technology is to use MPPT control, and various MPPT techniques have been proposed (Tafti et al., 2019, Dhimish, 2019).

How are MPPT methods compared?

The MPPT methods should also be compared with respect to their dynamic response, i.e., how they behave when the power panel is minimal and quickly changed to the nominal condition. Just to test, the resulting degree of power varies instantaneously from 10 to 200 W, and it can be evaluated using Fig. 11.

How to evaluate MPPT performance?

The existing methods for evaluating the MPPT performance are to judge whether the algorithm can accurately track the maximum power point, but a more informative the energy utilization index, that is, the ratio between the output power by the MPPT control method and the theoretical maximum output capability in a period of time.

How are MPPT control methods evaluated?

In Table 1, some MPPT control methods are evaluated from the point of view of complexity level, tracking speed, efficiency, and accuracy, etc. Each performance indicator is divided into three to five degrees, including low, medium, medium–low, medium–high and high.