Fuzzy logic control for speed control of three phase induction motor with variable frequency drive in marine applications

Abstract

Marine electric propulsion systems typically include variable-speed electric propulsion motors with propellers that employ a variety of converter control techniques. The precise management of the rotational speed of a three-phase induction motor is crucial in finding the best speed for the navigation environment. This work examines currently existing propulsion drive system control techniques and implements Fuzzy Logic Control for three phase induction motor speed control with variable speed drive having minimum harmonic and effective output. The entire set-up is simulated and analysed in MATLAB. To limit the harmonics, appropriate filters are utilised, and the total harmonic distortion factor is used as a metric to quantify the harmonics.