In a groundbreaking study, researchers have introduced a novel hybrid meta-heuristic algorithm, known as the Radial Movement Optimization with Arithmetic Optimization Algorithm (HRMO-AOA), to enhance the performance of grid-integrated wind-solar photovoltaic (PV) systems. This innovative approach was applied to the selective harmonic elimination (SHE) process in a five-level neutral point clamped inverter (5L-NPCI), which is crucial for improving the efficiency of renewable energy systems.
The research, led by B.S.S. Ganesh Pardhu from the Department of Electrical and Electronics Engineering at Aditya University and Jawaharlal Nehru Technological University Kakinada in India, demonstrates significant advancements in reducing total harmonic distortion (THD). The study tested the 5L-NPCI under various conditions, including complex solar irradiations and fixed wind power, marking a first in this area of research.
The findings reveal that the 5L-NPCI utilizing the HRMO-AOA technique achieved a remarkable THD reduction of 4.59%, a substantial improvement compared to traditional methods such as sinusoidal pulse width modulation (SPWM), which exhibited a THD of 17.66%. This reduction not only enhances the quality of power output but also contributes to the longevity and reliability of electrical systems connected to the grid.
“These results indicate that the 5L-NPCI with the SHE technique operates more efficiently under both fixed and variable load conditions compared to conventional methods,” said Pardhu. He emphasized that the faster convergence of the HRMO-AOA technique presents an opportunity for rapid advancements in inverter technology, which is pivotal for the integration of renewable energy sources.
The implications of this research are significant for the energy sector, particularly as industries and governments strive to increase the share of renewable energy in their energy mixes. By improving the efficiency and reliability of inverters, which are essential for converting and managing the power from solar and wind sources, this study opens doors for enhanced grid stability and reduced costs in energy production.
As the world moves towards a more sustainable energy future, innovations like the HRMO-AOA technique could play a vital role in making renewable energy systems more effective and economically viable. This research, published in “Results in Engineering,” highlights the potential for improved inverter technologies to support the growing demand for clean energy solutions.
