Abstract
Owing to the intermittent nature of renewable energy systems, an improved power extraction technique and modernized power modulators are to be designed to overcome power quality challenges. Attesting to this fact, this work aims to enhance the efficiency of the photovoltaic (PV) system using the BAT algorithm (BA) and enhances the overall performance of the system using modified inverter topology. Specifically, a new power electronic modulator, i.e., a simplified high gain quasi-boost inverter (SHGqBI), is implemented to eliminate the downsides of the conventional system. The proposed inverter reduces the additional components that can condense the volume of the design with reduced conduction and switching losses. The combination of BA-based PV rated 250 W and novel inverter configuration pick the global peak power with enhanced power quality. Notably, BA extracts the maximum power from the panel meritoriously with about 98.8% efficiency. This is because BA uses the global input parameters to track the maximum power of the PV panel, whereas other conventional maximum power point tracking (MPPT) techniques used limited parameters. Further, the current and voltage total harmonic distortion (THD) of the proposed inverter are recorded, which show a commendable range of 2.7% and 10.2%, respectively. In addition, the efficiency of the inverter is found to be 97%. Consequently, the overall system efficiency is calculated and found to be 97.9%, providing greater advantages over a conventional system. The system is mathematically modelled using MATLAB/Simulink and validated through an experimental setup with the laboratory prototype model.
Highlights
Global modernization is one of the key driving forces for a continual increase in energy demand
This section discusses the results of the proposed system in terms of two sides: (i) simulation and (ii) experimental results
Panel along with a switchless quasi switched boost inverter. It is built with TLP-350 optocoupler driver circuit rated 15 Vdc that drives the pulses to the switches through a microcontroller
Summary
Global modernization is one of the key driving forces for a continual increase in energy demand. Because of population and technological growth, energy consumption increases significantly, which influences environmental pollution [1,2]. The increase in environmental pollution and the cost of fossil fuels have become a challenging factor without compromising the ecology. Among the environmentally friendly renewable energy systems (RESs), solar photovoltaic (SPV) has attracted attention over the decades. To attain the maximum power point tracking (MPPT), modernized techniques are being adopted in the solar energy system using various methods and algorithms. The converting system takes another important role in solar applications for stand-alone and grid applications. The renewable energy source integrated with the electric grid system is referred to as renewable energy distributed generation (REDG). It is more sensitive to harmonics generation in both domestic and industrial applications
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