THD reduction and performance improvement of a pmbldc motor using a hybrid optimization techniques with modified multilevel inverter

Abstract

A photovoltaic (PV) system harnesses solar energy to generate newlineelectricity sustainably. PV clusters convert, distribute, and store this energy, often newlineby charging batteries for diverse applications. To optimize power generation, newlineMaximum Power Point Tracking (MPPT) calculations are crucial. This is newlineachieved using a DC-DC converter, like a chopper converter (boost converter), newlineto increase the input voltage from, say, 12 V to an output voltage of 24 V. newlineThe chopper converter steps up or boosts the input voltage to a higher level. By newlinerapidly switching a circuit, it stores energy in an inductor and releases it to an newlineoutput capacitor, increasing the voltage at the output. This design is versatile, newlinefinding use in renewable energy systems, electronics, and power supplies. newlineWork 1 proposes an enhanced chopper for improving current newlineextraction, controlling solar power generation, and increasing voltage. It uses a newlinesimplified space vector control technique to operate a permanent-magnet newlinebrushless DC drive (PMBLDC) by controlling the inverter operation. A fuzzy newlinelogic controller (FLC) is employed to manage the duty cycle and boost the PV newlinevoltage, utilizing expert knowledge to adapt to environmental changes. The FLC newlinedetermines the optimal chopper duty cycle by comparing the desired and actual newlineoutput voltage and current. Additionally, the work utilizes a modified multilevel newlineinverter (MMLI) to minimize harmonic distortions and switching losses. This newlineinverter is equipped with a Self-Tuning Filter (STF) that automatically adjusts newlineitself based on the load conditions, requiring minimal maintenance. newline