Reduction of Steady State Ripple of Vector Controlled Induction Motor Drives by Combining the Techniques of FOC and DTC

Abstract

To reduce the disadvantages of the existing Methods of field oriented control and direct torque control algorithms, the proposed method of the vector control algorithm mix the ideology of mutually field oriented control as well as direct torque control. The proposed algorithms generate the d-axis plus q-axes current references with the theory of existing field oriented control. As a result, by evaluate the current references as well as the actual currents error present signal is produced. As a result of with the error signals along with the lookup-tables, and the appropriate voltage vector will be chosen based on the theory of the direct torque control. Hence, the proposed method reduces the complexity when evaluated through the field oriented control as well as decreases the stable condition of the torque swells, when evaluate with the direct torque control method. So In this article, propose a 6-sector, 12-sector and 24-sector based lookup-tables designed for the vector control algorithm. The Mat-Lab-simulation results are exhibits the efficiency of the proposed techniques.