Analysis of Single-Diode PV Model and Optimized MPPT Model for Different Environmental Conditions

Abstract

The performance of photovoltaic (PV) systems must be predicted through accurate simulation designs before proceeding to a real-time application to avoid errors. However, predicting the cohesive relationship between current and voltage and estimating the parameters of a single diode model become a perplexing task due to insufficient data in the datasheet of PV panels. This research work presents single-diode solar PV system simulation analysis under different conditions, and the performance is improved by introducing an optimization-based maximum power point tracking (MPPT) strategy. Before simulation, a mathematical model for a single diode and optimization approaches are presented in this research work. Particle swarm optimization (PSO), genetic algorithm (GA), BAT optimization, and grey wolf optimization (GWO) model-based MPPT circuits are designed, and the performances are comparatively analyzed. The simulation results identify the nonlinear relationship between current and voltage and between power and voltage as characteristic curves for different temperature and irradiance values. For maximum power (Pmax), the maximum peak point tracking power and efficiency are analyzed to verify the optimization-based MPPT system. The simulation results demonstrate that the GWO model obtains a maximum tracking efficiency (TE) of 98%, which is much better than that of other optimization techniques.

Design And Comparison of Mppt Controller for Pv Systems

“…Photovoltaic cells are connected in series and/or parallel in solar modules. These cells are essentially photosensitive P-N junction semiconductor diodes (Senthilkumar et al, 2022). PV modules can be joined together in series or parallel to form PV arrays (Abdelaziz and Almoataz, 2020).…”

“…Photovoltaic power generation systems suffer from two main problems: The first is the high costs of purchasing and installing panels, batteries, and chargers. The second problem is the low efficiency of photovoltaic energy systems due to their being affected by weather conditions such as (change in the intensity of solar irradiation and temperature change), so the electrical characteristics (I-V and P-V) of photovoltaic (PV) systems are always nonlinear and depend on the intensity of solar irradiation and temperature (Arpacı et al, 2019;Senthilkumar et al, 2022). The sudden unexpected change in atmospheric conditions leads to a change in the efficiency of the photovoltaic system because the solar panels are made of semiconductors that are affected when sunlight falls on them and cause the movement of photons that cause the flow of electric current and are also affected when the temperature changes.…”

Elimination of Harmonics in Multilevel Inverter Using Multi-Group Marine Predator Algorithm-Based Enhanced RNN

“…fit ME (α) is the modulation error (ME) expression described in (19) and fit HDP (α) shows the HDP expression. Irrespective of the goal MI value, both the ME and HDP statements are given equal weight.…”

“…Distinct THD and noneliminated harmonics result from numerous solutions in few modulation index ranges. As a result, the entire solutions from the resulting system must be found [19].…”

A Three-Phase Reduced Switch Count Multilevel Inverter Topology

“…A generalized three phase structure using a diode-clamped H-bridge inverter is presented to appeal to three-phase output voltage. Te topology sufers from unbalanced capacitor voltages [17,18]. Two hybrid asymmetric cascaded multilevel inverters for driving medium-voltage open-end winding motors have been developed using three and nine levels H-bridge cells connected in series.…”