Critical sampling period for an open-loop perturband-observe (P&O) maximum power point tracking (MPPT) grid-connected solar photovoltaic (PV) system

Author

Anto, Emmanuel K. ; Okyere, Philip Yaw ; Asumadu, Johnson A.

Author_Institution

Dept. of Electr. & Electron. Eng., Kwame Nkrumah Univ. of Sci. & Technol., Kumasi, Ghana

fYear

2014

fDate

24-27 June 2014

Firstpage

1

Lastpage

5

Abstract

The critical sampling period depends on the natural angular frequency of the system, but it is very difficult to obtain for a real system. By modeling and simulation of the PV and DC-DC converter modules in the MATLAB/SIMULINK environment, the critical sampling period for an open-loop P&O MPPT grid-connected solar PV system has been determined, and the corresponding optimum percentage overshoot and settling time. Data from a real world 2-MWp grid-connected solar PV system of Volta River Authority (VRA) of Ghana were used for the study.

Keywords

maximum power point trackers; open loop systems; photovoltaic power systems; power grids; solar power stations; DC-DC converter modules; Ghana; MATLAB-SIMULINK environment; MPPT; critical sampling period; grid-connected solar photovoltaic system; open-loop perturb-and-observe maximum power point tracking; Educational institutions; Mathematical model; Maximum power point trackers; Oscillators; Photovoltaic systems; Software packages; Time-frequency analysis; Maximum Power Point Tracking (MPPT) Techniques; Natural angular frequency; Perturb & Observe (P&O); Sampling period;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics for Distributed Generation Systems (PEDG), 2014 IEEE 5th International Symposium on

Conference_Location

Galway

Type

conf

DOI

10.1109/PEDG.2014.6878687

Filename

6878687