High performance a.c. drive applications require fast torque response. The field oriented mode of control also known as current vector control facilitates fast and desired torque response similar to that in d.c. drive systems. This thesis is based on the basic principles of vector control applied to induction motors...Radial and tangential components of the electromagnetic force in the airgap of a vector controlled induction machine have beeninvestigated. The study reveals the correlation between the average value and undulation of the force components to the sinusoidal stator currents in the synchronous reference frame --Abstract, page iii
