Implementation of Unified Flower Pollination Algorithm Based High-Gain Converter Integrated with MLI for Solar Powered Electric Vehicle Application

Renewable energy source (RES) powered Electric Vehicle (EV) application needs effective maximum power extraction, high-gain voltage conversion and a high-quality AC power generation that ensures sustainable and reliable operation. This work proposes a unified architecture integrating a Flower Pollination Algorithm (FPA)-based Maximum Power Point Tracking (MPPT), a High-Gain Boost Single-Input Multiple-Output (HGB-SIMO) converter, and a Five-Level Cascaded H-Bridge (CHB) Multilevel Inverter (MLI) employing FPA based switching-angle optimization. The proposed system is validated under uniform and varying irradiation conditions in MATLAB Simulink environment. At 1000 W/m² irradiation, it is found that HGB-SIMO converter achieves the output to 115 V with a boost of 3.9. The generated DC-link voltages enable the CHB inverter to synthesize symmetrical output levels achieving 16.96% voltage Total Harmonic Distortion (THD) and 3.37% current THD. Experimental validation is carried out and confirms a close agreement by achieving a boost of 3.8, voltage THD of 18.4% and current THD of 3.8% which is within a tolerance of 2% thereby satisfying IEEE 519 current THD standards. Hence, confirming the practicality and efficacy of proposed system.