In this chapter, four case studies related to solar PV energy are presented and analyzed. The first case study discusses the solar irradiance and PV characteristics including sun’s location, tilt angle, module’s temperature, open-circuit voltage, short-circuit current, and maximum power.
It also controls the interaction with the voltage and frequency of the power utility, including the synchronization of the PV power generation that feeds into the grid. When the PV system is disconnected, the inverter stops the generation of AC power and allows the PV system to operate in an islanding mode.
The second analysis investigated the effect of the power input from different types of PV module technology. The study showed that the inverter connected to p-Si PV modules operated the highest efficiency at 0.91. However, detailed analyses showed that PV module technology had less or minimal impact on inverter efficiency.
Using the proposed Inverter as a UPS power supply in case of a grid failure, storage electrical energy and regulating the energy delivered to the grid for reducing the pressure on the grid. A new artificial fish-swarm algorithm and variable step voltage perturbation method were presented to track the maximum power point of the solar panels.
Solar PV power generation has been gaining significant worldwide attention. Global PV power capacity addition is expected to reach approximately 107 GW ( International Energy Agency (IEA), 2020 ), showing a stable growth from 2019. Major factors driving growth are favourable supportive policies and increasingly affordable system cost.
The inverter for each system (G1, G2, G3 and see Fig. 1) was a high frequency transformer-less Leonics G-304 (3.5 kW), installed in the controlling and data monitoring room, with the inside temperature maintained at 25 °C. The performance of each entire PV system and its various components were fully monitored.