Direct Torque Control of a Series-Connected Induction Motor

Series-connected induction motors (SCIM) is considering as a modern modification of conventional wound-rotor induction motors (WRIM). It is claimed that SCIM has higher starting torque and lower starting current comparing with the conventional WRIM. The main objective of this paper is to study and investigate possibilities of using SCIM in industrial applications that require variable speed operation. In this paper, direct torque control (DTC) was used to control the performance of MATLAB/SIMULINK model of SCIM. It was concluded that the computer model of the motor shows acceptable transient response to control circuit’s operation commands.