Fuzzy Logic Control for Solar PV Fed Modular Multilevel Inverter Towards Marine Water Pumping Applications

Abstract

The paper presents the design of Modular Multilevel Inverter (MMI) to control the Induction Motor (IM) drive using intelligent techniques for marine water pumping applications. The proposed inverter is of eleven level and has the ability to control the speed of an IM drive which is fed by solar photovoltaic's. It is estimated that the energy consumed by pumping schemes onboard ship is nearly 50% of the total energy. Considering this fact, the paper investigate and validates the proposed control design with reduced complexity intended for marine water pumping system employing an induction motor (IM) drive and MMI. The analysis of inverter is carried out with Proportional-Integral (PI) and Fuzzy Logic (FL) based controllers for improving the performance. A comparative analysis has been made with respect to better robustness in terms of peak overshoot, settling time of the controller and Total Harmonic Distortion (THD) of the inverter to show the effectiveness of the proposed scheme. Simulations are undertaken in MATLAB/Simulink and the detailed experimental implementation in real time with Field Programmable Gate Array (FPGA). The results thus obtained are utilized to analyze the controller performance, improved inverter output voltage, reliable induction motor speed control and power quality improvement by reduction of harmonics. The novelty of the proposed control scheme is the design and integration of MMI, IM drive and intelligent controller exclusively for marine water pumping applications.

Mitigation of supply current harmonics in fuzzy-logic based 3-phase induction motor

“…A similar result of the total harmonic distortion (THD) values using proportional integral PI and fuzzy logic controller (FLC) Int J Pow Elec & Dri Syst ISSN: 2088-8694  controller with RL and RC loads was presented by [6]. The FLC-based speed control of the induction motor, ANN-controlled active filter is discussed in [7] and [8]. Underbalanced and unbalanced load conditions with three-phase SAF using proportional integral (PI) and fuzzy logic controller (FLC) suggested reduction of harmonics [9].…”

PI controller for photovoltaic-fed novel multilevel inverter topologies

“…There are some areas within which genetic algorithms are frequently used: economics, optimization, vehicle routing problems, robot trajectory generation, etc. Genetic algorithm search from a population of points, not one point and supports multi-objective optimization, and uses transition rules, not deterministic rules [20], [21]. Genetic algorithms concept is straightforward to grasp and noise-free for the environment.…”

Adaptive Fuzzy Control of a Cable-Driven Parallel Robot

“…The fuzzy logic approach has been employed on various problems, such as image encryption [35], stabilization [36], tracking control [37], exoskeleton robots [38], humanoid robots [39], photo-voltaic inverters [40,41], electric vehicles [42], nonlinear estimation [43], data security [44], etc. In this paper, the adaptive control technique is improved using the fuzzy method.…”