Analysis and Design of a Doubly Fed Chopper for Speed Control of Slip-Ring Induction Motors -- Part II

In a companion paper, the analysis and design of a commonly used chopper circuit for controling the speed of slip-ring induction motor has been given. In order to overcome the disadvantages of that circuit, a modified version of the chopper circuit has been suggested and analyzed. The releveant points of difference between the design of the modified circuit and the original one have been indicated. Also the comparative merits and demerits of the two circuits have been discussed.