12-10-2016, 02:19 PM
1458799030-seminarreportCopy.docx (Size: 159.57 KB / Downloads: 5)
ABSTRACT
This paper proposes speed control of Separately excited DC Motor using semiconductor devices like TRIAC and DIAC Devices. It also explains how we can control speed of separately excited dc motor for various purposes. There are various types of speed control of separately excited dc motor like field control and armature control method. The speed control of dc motor can be used for various applications like lathes, fans, pumps disc and band saw drive requiring moderate torques, Electric traction, high speed tools.
The development of high performance motor drives is very important in industrial applications. Generally, a high performance motor drive system must have good dynamic speed command tracking and load regulating response. D.C motors have long been the primary means of electric traction. D.C motor is considered a SISO system having torque/speed characteristics compatible with most mechanical loads. This makes a D.C motor controllable over a wide range of speeds by proper adjustment of its terminal voltage. Recently, brushless D.C motors, induction motors, and synchronous motors have gained widespread use in electric traction. However, there is a persistent effort towards making them behave like dc motors through design and control strategies. Hence dc motors are always a good proving ground for advanced control algorithm because the theory is extendable to other types of motors.