Performances of fuzzy logic-based indirect vector control for induction motor drive_pgmslm

1. Performances of Fuzzy-Logic-Based Indirect Vector Control for Induction
Motor Drive
Abstract—
This paper presents a novel speed control scheme of an induction motor (IM) using fuzzy- logic
control. The fuzzy- logic controller (FLC) is based on the indirect vector control. The fuzzy- logic
speed controller is employed in the outer loop. The complete vector control scheme of the IM
drive incorporating the FLC is experimentally implemented using a digital signal processor
board DS-1102 for the laboratory 1-hp squirrel-cage IM. The performances of the proposed
FLC-based IM drive are investigated and compared to those obtained from the conventional
proportional- integral (PI) controller-based drive both theoretically and experimentally at
different dynamic operating conditions such as sudden change in command speed, step change in
load, etc. The comparative experimental results show that the FLC is more robust and, hence,
found to be a suitable replacement of the conventional PI controller for the high-performance
industrial drive applications.