Experimental Analysis of Modified DC-P&O Technique with Arm Controller for a Stand-Alone 40 W PV System
Ashish Singhal, Narendra Singh Beniwal, Khalid Almutairi, Joshuva Arockia Dhanraj, Ali Mostafaeipour, Alibek Issakhov, Prem Kumar Chaurasiya, Hossein Goudarzi, Vinod Kumar Singh
Abstract
The world is moving towards the generation of electricity with renewable energy sources (RES) due to the deterioration of the green environment and trying to replace non-renewable energy resources. The real-time results are achieved with the help of an arm controller, having good controller efficiency with the Waijung toolbox, compatible with MATLAB using STM32ST-link utility. In this paper, the authors are focused on areas such as easy to implement controller efficiency, and real-time solutions for modified direct-control perturbation & observation (DC-P&O) technique based on 32- bit ARM Cortex microcontroller (STM32F407VGT6) with embedded programming using Waijung blocksets, which offers very expected outcomes of the problem to make the stand-alone system efficient with fast-tracking. The observation setup is tested with a 40-watt photovoltaic (PV) panel with resistive load for achieving its stability. The designed algorithm enhances the efficiency of the controller by 84.48% for the real-time parameters of the PV panel at maximum power point (MPP) for a 57% duty ratio.