Electric Motor Tuning Using Field Oriented Control to Improve Torque Control System

Abstract

This work presents a well-built and low-cost control system that utilizes a rotary torque sensor connected to an AC- Asynchronous Machine. Using the proposed control scheme, the induction motor operates smoothly with stable torque and speed graphs using the motor drive scheme control. A Simulink MATLAB model that simulated the mechanism of the motor was built. The design was developed by analyzing the electric motor torque while setting a reference torque load value. The main novelty in this work is utilizing field-oriented control to simulate the behaviour of the motor on MATLAB, and to control the speed and torque simultaneously. The results were achieved by estimating the motor flux, torque, and current. The results showed that the proposed model was able to control the torque and speed with an acceptable error margin with high stability and low overshoots. The results were validated by comparing them with experimental data. Both results were almost identical with less than 2% marginal steady state error and less than 5% overshoot. The stability limits of the design has been indicated by dynamic error observer.