Control Panel for Speed Control of D.C Series Motor Using Armature Control and Flux Control Method

Abstract : The DC series motors are also very popular in industry like traction, crane, lifts, and rolling mills because of their high starting torque and variable speed nature. Yet, DC series motors are difficult to control in terms of speed due to the fact that the relationship between the armature current and the magnetic flux is not linear. The paper is about speed control of DC series motor by armature control and flux control. The armature control technique is where the speed of the motor is controlled by changing the applied armature voltage whereas the flux control technique is where the speed is controlled by changing the field flux with field diverter arrangements. The efficiency, torque characteristics, power losses, and speed regulation are the parameters applied to analyze the performance of both control techniques. The findings show that armature control is workable at lower speeds that are less than the rated, whereas flux control is applicable in attaining higher speeds that are above the rated value. The solution proposed can offer a solution to industrial DC motor speed control in an efficient and economical way Key Words - DC Series Motor, Speed Control, Armature Control Method, Flux Control Method, Electric Drives, Industrial Applications.