Simulation and analysis of maximum power point tracking in a stand alone PV system: A case study using regression analysis and pulse width modulation

Optimized gain in respect to output power of standalone photovoltaic (PV) systems is one of the major focus of PV in recent times. This is due to its low carbon emission and high efficiency. Power failure or outage from commercial providers in general does not promote development to public and private sector, these basically limit the development of industries. The need for a well-structured PV system is of importance for an efficient and cost effective monitoring system. The main aim of this paper is to validate the maximum power point (MPP) of an off-grid PV system taking into consideration the most effective azimuth and elevation angles for PV's. This paper is based on analysing the system using a solar charger with MPPT from a pulse width modulation (PWM) perspective. The power conditioning device chosen is a solar charger with MPPT. The practical setup consists of a PV panel that is positioned to an azimuth angle of 0° facing North, with a corresponding elevation angle of 36°, 26° and 16°. Preliminary results include regression analysis (Normal probability plot) showing the maximum power point in the study as well suggested best elevation angle for MMPT.