A High Gain DC-DC Converter with Grey Wolf Optimizer Based MPPT Algorithm for PV Fed BLDC Motor Drive

Abstract

Photovoltaic (PV) water pumping systems are becoming popular these days. In PV water pumping, the role of the converter is most important, especially in the renewable energy-based PV systems case. This study focuses on one such application. In this proposed work, direct current (DC) based intermediate DC-DC power converter, i.e., a modified LUO (M-LUO) converter is used to extricate the availability of power in the high range from the PV array. The M-LUO converter is controlled efficiently by utilizing the Grey Wolf Optimizer (GWO)-based maximum power point tracking algorithm, which aids the smooth starting of a brushless DC (BLDC) motor. The voltage source inverter’s (VSI) fundamental switching frequency is achieved in the BLDC motor by electronic commutation. Hence, the occurrence of VSI losses due to a high switching frequency is eliminated. The GWO optimized algorithm is compared with the perturb and observe (P&O) and fuzzy logic based maximum power point tracking (MPPT) algorithms. However, by sensing the position of the rotor and comparing the reference speed with the actual speed, the speed of the BLDC motor is controlled by the proportional-integral (PI) controller. The recent advancement in motor drives based on distributed sources generates more demand for highly efficient permanent magnet (PM) motor drives, and this was the beginning of interest in BLDC motors. Thus, in this paper, the design of a high-gain boost converter optimized by a GWO algorithm is proposed to drive the BLDC-based pumping motor. The proposed work is simulated in MATLAB-SIMULINK, and the experimental results are verified using the dsPIC30F2010 controller.

Modified Levy Flight Optimization for a Maximum Power Point Tracking Algorithm under Partial Shading

“…The circuit model is shown in Figure 6. This system consists of a PV panel, boost converter, MPPT controller, and load [67]. The boost converter is chosen in this application due to its popularity among researchers as it has a low voltage ripple [11].…”

Special Issue on Advances and Technologies in High Voltage Power Systems Operation, Control, Protection, and Security

“…The Harris hawk's optimization (HHO) and atom search optimization (ASO) are used to optimally design the controller of the hybrid modular multilevel converters (MMC). This study in [8] has focused on one such application. In this proposed work, a direct current (DC)-based intermediate DC-DC power converter (i.e., a modified LUO (M-LUO) converter) is used to extricate the availability of power in the high range from the PV array.…”

Non-Integer Order Approximation of a PID-Type Controller for Boost Converters

“…From elementary configurations of DC-DC converters, the boost conversion mode is one of the most used and implemented, mainly because of its ability to step up the converter power supply, which allows interconnecting higher voltage demanding loads with lower-level power sources. The application range includes high-efficiency power supplies [1], DC motor drives [2], and renewable energy conversion systems [3], to mention the most relevant.…”