Performance Improvement for Direct Torque Control Induction Motor Drives

This paper presents the modified integrator which we can use in the controlling scheme of an induction motor (IM). The modification tends to some advancement in direct torque control of induction motor. The undesirable variations which occur in the form of offset, gain error, etc can be eliminate by means of the involvement of the new integrator in the direct torque and flux control (DTFC) method. The PI controller is introduced in new torque and speed control model. By observing the flux the offset can be maintained. Thus by using the new integrator method we can overcome the variations occurs because of the errors.