Closed-Loop Control of Solar Fed High Gain Converter Using Optimized Algorithm for BLDC Drive Application

The detailed analysis of closed loop control of high gain converter with Particle Swarm Optimization (PSO)-based PID controller fed BLDC motor was carried out using an alternative energy source. The main motive of using the advanced topology of the converter is to get high voltage transfer gain and to acquire maximum power from the solar array. In this work, PSO algorithm is introduced for PID controller. Traditional controllers cannot provide effective dynamic performance, hence PSO-PID control algorithm is proposed for tuning PID gain parameters. Moreover, the VSI adapts fundamental switching frequency to avoid power loss due its high switching frequency and the speed of Brushless DC (BLDC) drive is controlled through variable dc-link voltage of VSI. No additional control circuits are added to regulate the speed of the motor drive, thereby preventing additional power loss in the system. The battery storage provides additional support for an uninterrupted power supply to operate the BLDC motor in the absence of solar irradiance. By implementing the closed-loop control of this converter configuration using an optimized algorithm, the overall efficiency of the system can be increased. Using the MATLAB platform, device output is validated.